In their last film together, the Marx brothers pull out all the stops. A Nazi treasure is hidden inside of a Casablanca Hotel, and three hotel managers in a row have died suspiciously, just as Ronald Kornblow (Groucho Marx) is hired to become the hotel's new manager. Meanwhile, Nazis are afoot with plans to make Kornblow the fourth victim, intending to trap him through the allure of a beautiful woman. Chico plays Rusty, the valet for the head Nazi, who overhears the plan, and teams up with businessman Corbaccio (Chico) to save Kornblow from the femme fatale. Rusty and Corbaccio tend to be a bit overzealous in the protection of Kornblow, providing for some hilarious moments. Soon Rusty finds the treasure, but the trio is thrown into prison before he can claim it. From prison on out the Brothers' slapstick, surreal humor really gets going, providing bigger and better laughs as A NIGHT IN CASABLANCA races toward its extremely silly climax.