A fugitive, dangerous madman reaches an English village where he confronts his former partner who left him for dead in the jungle after their discovery of a diamond mine. When the former partner also claims to have since lost the mine and all its wealth, which he took all for himself, and though the partner is still living in a state of luxury , the madman takes up an offer from a crazed scientist to make him invisible, something the scientist has already done with experimental animals, so that he can take revenge.

A couple, Maggie and Ben Porter, inherit an old farmhouse and move in, hoping to reinvigorate their marriage. When they learn the home was occupied long ago by a woman who was executed for practicing witchcraft, Maggie begins to have nightmares about her.

In December of 1944, Lionel Evans, an internationally renowned American conductor, is on a USO tour with his 70-piece symphony orchestra in newly-liberated Belgium. While fleeing from a German counterattack, Evans and his orchestra members are captured by a Panzer division and taken to an old chateau in Luxembourg. Despite orders to execute every prisoner, General Schiller, an avid music lover, commands Evans to give a private concert for him.