YMMV / Star Trek: The Next Generation S3E25 "Transfigurations"

• Moral Event Horizon: If Sunad hadn't already crossed it for wanting to kill John Doe (and possibly having already killed his comrades) for supposedly being a threat, then trying to murder everyone on the Enterprise definitely puts him over the edge.
• Nightmare Fuel: John Doe's appearance when he's first found by the Enterprise away team. More immediately apparent than the loss of his left arm is that he's received extreme facial trauma, with his brain exposed and skin ripped away from his cheek, exposing his back teeth.
• Padding: The two-minute scene of Picard and Data trying to determine where exactly John Doe came from is one of the more notorious Techno Babble scenes in the show's history, with the two doing nothing but sitting on the bridge and spewing out meaningless jargon.
• Special Effects Failure: At the end of the episode, John Doe is transformed into a glowing yellow energy being... which looks like a person wearing a glowing morphsuit. The HD remaster really doesn't help, turning what was originally a hit-or-miss effect on first transmission into a thousand-yard miss.
• What Do You Mean, It's Not Symbolic?: For some, this episode is oozing religious references. It helps this episode is called "Transfigurations."