Summary: David Collier is called urgently to Cyprus. He is soon involved with the mysterious and beautiful Helene who gives him disturbing news.

Summary: Collier's attempt to take Helene's evidence to Inspector Dimas is violently interrupted and he is unable to persuade the Inspector of the truth of what has happened. Later a meeting with his brother's friend, Eric Morrison, is broken up in a frightening way.

Summary: Collier stumbles on people he is sure can help him convince Inspector Dimas of his brother's murder. Later the evidence which Helene first produced mysteriously turns up again - and again leads to trouble.

Summary: After his violent clash with Collier, Morrison soon finds himself in a desperate situation. Hellman begins to show his hand - and Collier again meets Helene.

Summary: Collier unwittingly plays into the hands of Hellman. Meantime, from his hiding place, Morrison arranges to meet a buyer - but the deal goes sadly awry.

Summary: Morrison waits to conclude his deal - but he is horrified when the 'buyer' appears. Inspector Dimas is intrigued by what he learns from Collier; later he gets startling news from Morrison's girlfriend.

Summary: Preece is badly shaken by the things Hellman tells him. He realises he still has a long way to go to achieve his ends. Collier again meets Helene. Unsuspecting they wander into a situation of great danger.

Summary: Collier goes through a final shattering experience. Later inspector Dimas shows him something which Collier finds incredible, but which could offer an explanation for all that has happened.