Deuce Bigalow (Rob Schneider), an insecure fishtank cleaner, is fired for cleaning the tank at a public aquarium in the nude because the swimsuit's chemicals would've been hazardous to the fish. Deuce is unsuccessful in attracting women, so he attempts to keep himself busy at work. On a house call, he meets the Argentinian male prostitute Antoine Laconte (Oded Fehr). Antoine is going on a business trip, and so asks Deuce to care for his sick lionfish and protect his home while he is away. Deuce accidentally sets Antoine's kitchen on fire when trying to make a grilled cheese sandwich in the toaster, and breaks an expensive fish tank.