Continuity: The position between shots of the telephone and the envelope when Carole picks up the rabbit and goes to answer the phone.
Continuity: When Carol gets back home from work she takes off her shoes. A moment later, in the bathroom, she has them on her feet again.
Audio/visual unsynchronized: During the scene right before the boyfriend is murdered, the old woman's dog can be seen panting, with its tongue hanging out - yet we hear barking.