Danny Muldoon, a Chicago policeman, still lives with his overbearing mother Rose. He meets and falls in love with Theresa Luna , whose father owns the local funeral parlour. Naturally, his mother objects to the relationship, and Danny and Theresa must either overcome her objections or give up the romance.
The extravagant cop Michael Dooley needs some help to fight a drug dealer who has tried to kill him. A "friend" gives him a dog named Jerry Lee (Officer Lewis), who has been trained to smell drugs. With his help, Dooley sets out to put his enemy behind the bars, but Jerry Lee has a personality of his own and works only when he wants to. On the other hand, the dog is quite good at destroying Dooley's car, house and sex-life...