Jerry chooses the best hotel in New York as his apartment on the eve of the "wedding of the century" that is to take place there. This forces the desperate wedding planner to hire Tom to get rid of the rodent. However, the real battle between the cat and the mouse that ensues may ruin her career, the ceremony, and perhaps even the hotel itself. Soon, however, an even bigger problem appears: a diabolically ambitious employee conspires against all three of them.