Spoiler! Why did Sam take the money and hit Gloria while Jake watched?
When Sam knew that Jake would be watching, he went in to the bedroom, stole (or took) money from the safe and then proceeded to hit his beautiful wife.
Why would Sam do that? He was trying to build an alibi for himself, so why do something that Jake could tell the police that would increase suspicion back on himself (that being Sam)? I don't get it.