Captain Chadwell, Lieutenant Junger and Sergeant Smith are sent by Washington to help their colleagues of Fort Apache to recover stolen arms. A bounty hunter accompanies them.

A rich man gathers together friends and relatives at the abandoned theatre he owns, but the party isn’t fun for long since apparently one of them is a murderer.

A group of friends get together in a remote Mediterranean island for a weekend of relaxation. Soon they start turning up dead one by one. The group gets together to determine the identity of the killer amongst them.