The extraordinary and chilling story of career conman Robert Freegard who masqueraded as an MI5 agent and fooled people into going into hiding, and the woman who fell for him, and then brought him down.

Anne was in love with Frederick, who was rejected by her snobby parents 8 years ago. They've now hit hard times and rent out their mansion to his brother-in-law. He returns a Royal Navy captain. Will he remember Anne?