An American insurance executive, who sees his wife and children die when a plane crashes into their vacation cottage on the Irish coast, uncovers a series of suspicious clues indicating that it was no accident after a pretty financial reporter who resembles his dead wife turns up.
Imprisoned Harry Lomart is a vicious, brute of a man and yet he is prepared to do his long jail term as he is confident that on his release his beautiful wife Pat will be waiting for him, but a visit from Pat brings him his worst nightmare.
A member of British Intelligence assumes a fictitious criminal identity and allows himself to be caught, imprisoned, and freed in order to infiltrate a spy organization and expose a traitor; only, someone finds him out and exposes him to the gang...
