Revealing mistake: At the very end, as Evelyn is leaving she gets her coat stuck in the door frame. However the coat doesn't move, indicating that Evelyn is stood outside the door waiting for the shot to be over. (00:22:00)
Continuity mistake: What Isabella is doing with her hands at the start keeps changing. (00:02:10)
Answer: That would be "Corey's Been Dead For an Hour" in season 4, episode 9.
Super Grover ★