Continuity: When Behrani puts the plastic bag on his head, to suffocate himself, we see shots of him breathing heavily. In one shot the bag has become very condensed with his breath, yet when we see him take his final breath, the bag is perfectly clear.

Continuity: When Behrani is reading the article on the hose it states it has two bedrooms. But the salesman states it has three - which it does.

Revealing: When Kathy is ripping open the plastic bag tied around Behrani, watch closely and you can see Behrani's eyelids flutter, although he's dead.