History Recap / PsychS03E15Tuesdaythe17th

* RewatchBonus: Billy tries to tell Shawn and Gus the real deal about Camp Tikihama when they first arrive, but is quickly cut off by Jason. It's only after the twist is revealed that what he's trying to say becomes clear.

* CreepyGood: Jason turns out to be this.

* HeroicSacrifice: Attempted [[RuleOfTHree three times]].

The episode opens in 1988 as little Shawn and Gus are being picked up from summer camp at Camp Tikihama. Shawn is furious with Gus because he ditched him for "golden boy Jason Cunningham" in the piniata competition. Shawn's piniata is then shown sunk down to the bottom of the lake, attached to a rock.

20 years later (present day), Annie, a camp counselor, is in her cabin on a stormy night watching a horror movie with a cold. She thinks she hears a noise and investigates, but after discovering that it was just an open window, she realizes that it was nothing. She then looks out the window and sees a mysterious figure with a potato sack over his head standing across the lake staring in at her, but she just thinks her eyes are playing tricks on her. Annie opens the refrigerator and sees a note written in blood which reads, "I see you". Annie backs up to the window when suddenly, the man she saw earlier bursts through it and attacks her just moments before the opening credits begin.

A day later, Shawn and Gus are returning to the Psych headquarters when they are stunned to be reunited with Jason Cunningham, but Shawn doesn't take it so well. After discovering that Annie is missing, Shawn and Gus agree to help Jason look for her and return to Camp Tikihama where they meet Clive, Billy and Sissi, as well as Jason in a possessed-like state. After investigating Annie's cabin, Shawn, Gus and Sissi walk to the laundry shack where they find Annie's blood-soaked PJs in the washing machine. After gathering Clive and Billy, they all go out to search for Annie, except for Shawn who stays behind and calls Juliet to come and help them.

Later on, when Juliet arrives, the others return to find that Billy is missing and Juliet tells them to all get inside as a group. Meanwhile, Lassiter is meeting with his estranged wife and later discovers that the only reason she wanted to get together with him was for him to sign their divorce papers (sadly, he does).

Back at Camp Tikihama, Jason interrupts a conversation in the main cabin, then leaves. Shawn decides to go after him while the others stay behind. As he is searching, Shawn notices that the washing machine in the laundry shack is running again and walks towards it. Inside, he finds Annie tied to a chair, supposedly strangled to death, followed by a man with a potato sack over his head carrying a machete. Shawn is chased outside of the shack and back to the main cabin where he trips and is attacked, but quickly realizes that this is all just a set-up and stops Juliet from shooting the "killer", who is revealed to be Jason. It is also revealed that Gus, Annie and Billy were all in on the plan in order to get back at Shawn for all the times he scared Gus when they were kids.

As a storm approaches, the whole gang gathers inside for a party when Shawn discovers the body of the camp's janitor, "Crazy Old Erwen" floating in the lake. Juliet tries to phone an ambulance but soon learns that all the phone lines have been knocked out, preventing her from getting a signal and all the roads have been completely blocked by fallen trees from the oncoming lightning storm.

A while later, Annie decides to go back to her cabin to take a shower while the others stay back to play a game of "Strip Crippage". After getting out, Annie notices a man with a potato sack over his head carrying an axe standing behind her, whom she mistakes for Jason, and is murdered off-screen.

After a while of hard thinking, Shawn finally figures out that Clive is the killer and he and Juliet go out to investigate, later finding the bodies of Billy and Annie. Back at the main cabin, Gus, Sissi and Jason are interrupted by a mysterious sound. Just then, the killer appears from around the corner and charges at the trio, but Jason risks his life, charges back at him and is stabbed while Gus and Sissi escape.

The next morning, paramedics and ambulances arrive and take Jason and Sissi to the hospital, when Gus learns that the two are actually engaged. The episode concludes with Shawn, Juliet and Gus standing by the water staring out on to the lake, relieved that their nightmare is finally over. Gus also apologizes to Shawn for ditching him with Jason 20 years prior (Shawn accepts).

** After piecing everything together and realizing that Jason was playing a prank on him, Shawn is amused and joins Jason and everyone else for a drink, letting go of his grudge towards him.

* AffectionateParody: To the 80s SlasherMovie, in particular, the Franchise/FridayThe13th franchise.

* BittersweetEnding: Clive is arrested and most of the episode's cast survive, but three people are dead (Annie, the janitor, and Billy) and one is nearly fatally injured (Jason); Jason's slasher camp idea is most likely ruined due to all the murders that happen; Gus learns that Sissi is Jason's fiancé, meaning he had no chance with her; and Shawn, Gus, and Juliet are disturbed and traumatized by the night's events, with the mood not being lifted after a quip from Shawn. Meanwhile, in the subplot, Lassie prepares for what he thinks is a date with his estranged wife, Victoria, only to learn that the reason she invited him to dinner was to finalize their divorce, to which he sadly complies.

* ColorWash: The scenes occurring in and around Camp Tikihama have a desaturated color palette, to reflect the 80s SlasherMovie aesthetic.

* DisproportionateRetribution: Clive's ultimate plan is to prevent Jason from opening the camp. However, not only was attacking and killing the other employees an over-the-top action by anyone else's standards, but it's implied that Annie and Billy did not know about the camp's theme until after they arrived, and Annie in particular did not seem that agreeable to Jason's plan. Unfortunately by then, Clive had gotten so AxCrazy that he assumed that they were all in on it, even Shawn, Gus, and Juliet.

** The reason the camp shut down in the first place is because a repairman (AKA Clive's father) was electrocuted in the camp's swimming pool.

** Shawn thrusts himself in front of the killer (Jason) so that Juliet won't shoot him once he realizes that the slasher's "weapon" is fake.
** Shawn charges at the killer with the express purpose of saving Gus, not knowing that Gus has already fought off the killer. HilarityEnsues.
** Jason charges at the killer to save Sissi and Gus. He's stabbed but survives.

* ItWasADarkAndStormyNight: The whole episode takes place over one, in old-fashioned slasher tradition.

* OutOfCharacterMoment: Gus's lack of squeamishness over finding red spattered clothing in the drier is one of the things that eventually tips Shawn off that the slasher scares are a part of the theme for the camp, and that Gus already knew about it.

* YouKilledMyFather: A variant, befitting the AffectionateParody of slasher movies. Clive turns out to be opposed to the whole ''idea'' of the "slasher camp" because his father died there 20 years ago.

* IWantMyBelovedToBeHappy: Lassiter admits at the end of his subplot that as much as he wants his ex-wife back, he loves her enough to let her go so they can both move on.

* FootDraggingDivorcee: Lassiter has been holding out on his estranged wife. The dinner isn't to reconcile. It's to get him to sign the divorce papers.

* HypocriticalHumour: Juliet is not very happy about the "slasher camp", and Clive's whole motive revolves around him taking revenge on the slasher camp...by ''re-enacting a slasher movie''.

** The mood starts off like a regular ''Pysch'' episode, with jokes and numerous ShoutOuts, but once people actually start dying, the episode takes a ''much'' darker tone, even with all the jokes.

* BittersweetEnding: Clive is arrested and most of the episode's cast survive, but three people are dead (Annie, the janitor, and Billy) and one is nearly-fatally injured (Jason), Jason's slasher camp idea is most likely ruined due to all the murders that happen, Gus learns that Sissi is dating Jason, ruining any chance he had with her, and Shawn, Gus, and Juliet are disturbed and traumatized by the night's events, with the mood not being lifted after a quip from Shawn. Meanwhile, in the subplot, Lassie prepares for what he thinks is a date with his estranged wife, Victoria, only to learn that the reason she invited him to dinner was to finalize their divorce, which Lassiter sadly complies to.

* CharacterDevelopment: Lassiter's come a long way in two and a half seasons.

* EpisodeTitleCard: One that mimics the one at the beginning of ''Film/FridayThe13th1980''

* HeroicSacrifice: Attempted [[RuleOfTHree three times.]]

** Lassiter's subplot where he's going to dinner with his wife, whom he's been separated from for two years and hopes to make up with, starts off all hopeful and upbeat, only for his wife revealing at dinner that she only invited him to finalize their divorce.

* OutOfCharacterMoment: Gus's lack of squeamishness over finding red spattered clothing in the drier is one of the things that eventually tips Shawn off that slasher scares are a part of the theme for the camp, and that Gus already knew about it.

* BittersweetEnding: Clive is arrested and most of the episode's cast survive, but three people are dead (Annie, the janitor, and Billy), Jason's slasher camp idea is most likely ruined due to all the murders that happen, Gus learns that Sissi is dating Jason, ruining any chance he had with her, and Shawn, Gus, and Juliet are disturbed and traumatized by the night's events, with the mood not being lifted after a quip from Shawn. Meanwhile, in the subplot, Lassie prepares for what he thinks is a date with his estranged wife, Victoria, only to learn that the reason she invited him to dinner was to finalize their divorce, which Lassiter sadly complies to.
* CallBack: Turns out Shawn and Gus really ''did'' go to Camp Tikihama, first mentioned in ''[[Recap/PsychS02E09BountyHunters Bounty Hunters!]]''. The song that Tancana improvised, with CreepyChildrenSinging, plays over the shot of the camera descending into the lake to end on Shawn's discarded Rick Astley piñata.

* HeroicSacrifice: Attempted three times.

* DisproportionateRetribution: Clive's ultimate plan is to prevent Jason from opening the camp. However, not only was attacking and killing the other employees an over-the-top action by anyone else's standards, but it's implied that Annie and Billy did not know about the camp's theme until after they arrived, and Annie in particular did not seem that agreeable to Jason's plan. Unfortunately by then, Clive had gotten so AxCrazy that he assumed that they were all in on it, even Sean, Gus, and O'Hara.

* HeroicSacrifice: Attempted twice.