A pirate crewman kills his captain after learning where he has hidden his buried treasure. However, as he begins to lose his memory, he relies more and more on the ghost of the man he just murdered to help him find the loot.

Recently divorced career woman Alex Greville begins a romantic relationship with glamorous mod artist Bob Elkin, fully aware that he’s also intimately involved with middle-aged doctor Daniel Hirsh. For both Alex and Daniel, the younger man represents a break with their repressive pasts, and though both know that Bob is seeing both of them, neither is willing to let go of the youth and vitality he brings to their otherwise stable lives.

This espionage thriller represents a landmark in spy movies introducing the sly, dry intelligence agent Harry Palmer. The story, centers on Palmer’s investigation into British Intelligence security. He’s soon enmeshed in a world of double-dealing, kidnap and murder and finds a traitor is operating at the heart of the secret service. Will the mysterious ‘Ipcress File’ reveal who the traitor is?