When Michael is trying to break into Leah's house and then succeeds.
When he pulls Leah out from under the bed.
When Casey wakes up in the trunk of Michael's car and starts banging on the inside and screaming, "NO!" over and over.
The pictures of Michael's deceased sister, who is dead in the pictures with a young Michael kissing her on the lips.
At the end of that scene, the flashlight moves away from the pictures of the dead sister, and the flashing briefly illuminates only the girl's eyes. She looks possessed.
As Abigail Breslin says in this video "The scenes in the lair are definitely really creepy and really scary..."
When Michael washes Casey's hair, sniffs it, combs it, and trims it.
"The scenes in the lair are definitely really creepy and really scary..."