A Dozen Deadly Roses

This episode presents a spy drama. Lorraine Boswell is acquitted of killing her wealthy husband thanks to the testimony of a total stranger, Martin Pitt. They fall in love and marry. Martin is trying to get his hands on her husband's collection of manuscripts and autographs because his passport is included in its contents and it proves he is a spy. Ben Caulder, who is an Interpol agent, tries to buy the collection, but Martin refuses. Caulder tells Lorraine about Martin, who apparently kills him. Lorraine tells Martin that there are copies of his passport in the bank, so they play Russian roulette with drinks laced with arsenic. He dies and she is tried for his murder, but Caulder appears to clear her.