Simon's investigation of a power boat accident which killed two wealthy men, leaving one's wife a penniless widow, leads him to the stash from an old gold robbery.

Simon's investigation of a power boat accident which killed two wealthy men, leaving one's wife a penniless widow, leads him to the stash from an old gold robbery.

Simon comes to the aid of a woman trying to rescue her brother from drug smugglers.

Simon comes to the aid of a woman trying to rescue her brother from drug smugglers.

A woman asks Simon for help in proving that her father was murdered by his business partner when he found out the man was cheating him.

A woman asks Simon for help in proving that her father was murdered by his business partner when he found out the man was cheating him.

Simon comes to the aid of a successful pop singer whose record producer is driving her too hard.

Simon comes to the aid of a successful pop singer whose record producer is driving her too hard.

No one will believe a former mental patient who claims to have seen a murder through the window while a passenger on a train.

No one will believe a former mental patient who claims to have seen a murder through the window while a passenger on a train.

Simon sets out to stop a scientist from selling out to a foreign power, after two young women ask for Simon's help in getting him to defect.

Simon sets out to stop a scientist from selling out to a foreign power, after two young women ask for Simon's help in getting him to defect.

A man seeking revenge threatens to blow up London unless a sculptress is publicly executed.

A man seeking revenge threatens to blow up London unless a sculptress is publicly executed.

Two women decide that the best way to end their marital problems is to have Simon kill their husbands.

Two women decide that the best way to end their marital problems is to have Simon kill their husbands.

Simon infiltrates a drug ring that is being run by a mysterious man known only as `The Gent'.

Simon infiltrates a drug ring that is being run by a mysterious man known only as `The Gent'.

Simon accidentally becomes involved in a British intelligence operation, after he spots a man believed to be dead.

Simon accidentally becomes involved in a British intelligence operation, after he spots a man believed to be dead.

After saving the life of a young girl, Simon finds himself pitted against the secret police of a Southeast Asian country.

After saving the life of a young girl, Simon finds himself pitted against the secret police of a Southeast Asian country.

A murder investigation brings Simon to a remote Italian village, which is ruled by a psychotic aristocrat.

A murder investigation brings Simon to a remote Italian village, which is ruled by a psychotic aristocrat.

Simon joins forces with an Israeli agent in order to track down and capture an Arab terrorist who is on the loose in London.

Simon joins forces with an Israeli agent in order to track down and capture an Arab terrorist who is on the loose in London.

The daughter of one of Simon's friends is kidnapped in order to lure Simon into a trap.

The daughter of one of Simon's friends is kidnapped in order to lure Simon into a trap.

Simon aids an Italian woman who has had a vision of her husband's death.

Simon aids an Italian woman who has had a vision of her husband's death.

Simon decides to rescue a British agent, whom he was once romantically involved with, who has been kidnapped and is being held by terrorists in the Alps.

Simon decides to rescue a British agent, whom he was once romantically involved with, who has been kidnapped and is being held by terrorists in the Alps.