Eugene and Rick are two struggling artists who share apartment. However, Rick has problems with that, because Eugene is obsessed with pulp fiction comic books and has nightmares because of that. However, Rick soon finds that those nightmares could be excellent material for his own comic books.

Nightclub singer Larry Todd breaks off his romance with a beautiful showgirl when he realizes she's the girlfriend of a murderously jealous gangster. While on the run, Larry mistakenly believes he kills one of the mobsters and is helped to escape police by heiress Mary Carol, who smuggles Larry and partner Myron to Cuba. Mary has inherited a haunted castle on an isolated island and, ignoring ominous warnings and threats, decides to take possession. While there, the trio hunt for a hidden treasure and encounter a ghost, a zombie, and a mysterious killer.

Summoned by the dying General Sternwood, Philip Marlowe is asked to deal with several problems that are troubling his family. Marlowe finds that each problem centers about the disappearance of Sternwood's favoured employee who has left with a mobster's wife. Each of the problems becomes a cover for something else as Marlowe probes.