Private investigator Jefferson Keyes becomes involved in the strange death of Raymond Pascal, one of the world's richest men. Jefferson Keyes is offered a million-dollar fee to locate Marcella Pascal, the heiress to a $56-million fortune when her father dies under mysterious circumstances. Carla Miles, the man's long-time companion, contests the will, claiming to have married him secretly. Keyes gets embroiled with Inspector Duprez and a retired moviemaker. His investigation also leads him to Adrienne, said to be the missing daughter suffering from amnesia. Mme. Marline is the head mistress of the private school from which the girl supposedly disappeared.

In this premiere episode, Keyes is convinced that homicide charges against industrialist Fitzsimmons are false and he finds a witness in Canada, artist Annette Borne, who might hold the key to his client's fate. Keyes follows leads that take him from Toronto to Quebec as he attempts to find out why a man was murdered and who might be framing his client.

Jefferson Keyes is assigned to regain by some means a  painting a wealthy Englishman sold to a Greek friend.