A nightclub singer and his partner escape mobsters by fleeing to Cuba with a beautiful heiress, who has inherited a haunted castle on an isolated island. The trio hunt for a hidden treasure and encounter a ghost, a zombie, and a mysterious killer...

Dean Martin
as Larry Todd

Jerry Lewis
as Myron Mertz

Lizabeth Scott
as Mary Carroll

Carmen Miranda
as Carmelita Castinha

George Dolenz
as Mr. Cortega

Dorothy Malone
as Rosie

William Ching
as Tony Warren

Paul Marion
as Ramon Cariso / Francisco Cariso

Jack Lambert
as Zombie

Tony Barr
as Trigger
John Chard
It's worse than horrible because a zombie has no will of his own. Larry Todd (Dean Martin), and Myron Mertz (Jerry Lewis) run a foul of gangster "Shorty" and are forced to flee the hotel when suspicion of murder falls on Larry. Hooking up with heiress Mary Carroll (Lizabeth Scott) who is sailing ...