Plot hole: It seems strange why Alison and Cynthia Keener don't raise any suspicion with Wheeler's mother after rescuing her daughter Joanna. After Keener finds her and the other missing girl, she says to Alison that the kidnapper had taken them and had been torturing and abusing them for a number of days. However when Alison and Cynthia go to talk with Wheeler's mother about the old kidnapping case (before the two were rescued) the mother states that she has never been kidnapped and had even saw her yesterday. While the mother might not have been aware of her daughter's kidnapping, wouldn't she have been a little perplexed to have found her daughter had been kidnapped and tortured during days she had seen her. Even if this was something that was not shown, why wouldn't Alison and Cynthia (someone who is well trained in kidnappings) find the mother's statement combined with the kidnapping a bit strange.

Continuity: In Episode 411, "Lady Killen": When Lee Scanlon is in Sensai and the janitor walks him to the kitchen, the doors are push-through doors with no handles on them and with circular windows in them. But when they walk through, the doors are not push-through any more, but have handles on the one side they opened with, and no windows.

Continuity: At the beginning of the episode, Van Gogh starts painting blue circles "on" our TV screen (this is the 3D episode). The three circles are big and touch each other. Next shot, seen from a standard point of view, you see him getting back up and the canvas is still on the floor: the circles are smaller and quite far apart.