Comedy-mystery finds Detectives Kelly and Dempsey trapped in a deserted lighthouse with a group of strangers who are being terrorized by a killer octopus AND a mysterious crime figure named after the title sea creature.

• Warner Bros. Pictures
• First National Pictures
• Hugh Herbert
• Allen Jenkins
• Marcia Ralston
• John Eldredge
• George Rosener
• Brandon Tynan
• Eric Stanley
• Margaret Irving