Assassins take a flight controller's family hostage to force him into revealing the aircraft carrying their quarry.

A Yank comes to Havana in search of an old friend who disappeared during the Cuban Revolution, and discovers a group of Batista sympathizers plotting to overturn Castro.

A successful professor has his life disrupted by a secret from his past — in his college days he became a member of a powerful secret society, and now the society has a job for him.