A Florida-bound train is filled with romance and intrigue when one of the passengers disappears while carrying $11-million in unset jewels.

Former jewel thief Michael Lanyard toys with a princess and a grand duke.

Someone is murdering the cast and crew of a new Hollywood movie, and the leading lady may be next. As a police detective locks down the lot and refuses to let anyone leave, the studio’s publicity head and his secretary attempt to solve the murders themselves.