When an overbearing young high-pressure business man receives death threats, Marker is put on as bodyguard. The arrogant executive is having an affair with an employee's wife, so the husband makes a move against him- but is he the only one?
Runaways from the country are lured by the glamour of London, only to fall into the hands of recruiters for call girl rings. Jennie is one, and she soon becomes hard and cynical. Marker is hired to find her and coax her to return home.
Marker moves into new offices in Birmingham, and is engaged to track down a missing husband.
Marker investigates a food poisoning claim.
A librarian suspects that his wife posed for The Bromsgrove Venus, and asks Marker to find out whether she has been having an affair with the photographer.
Marker investigates when a female patient dies under the care of a doctor with whom she had had a relationship.
Let out on remand from prison for a crime he didn't commit, Marker relocates to Brighton and finds that adjusting back to normal life is harder than he first thought.
Marker gains employment on a building site and exposes a swindle by a rocker.
A pay packet is stolen at the building firm where Marker works, and he finds himself under suspicion by both his workmates and the local police.
Marker tries to save a fellow lodger who tries to kill herself.
Marker joins a local detective agency, and has to gather evidence to help a man accused of murdering a local garage owner.
Marker has to find a runaway who has come to Brighton in search of fame and fortune.
Marker decides to re-establish his own enquiry agency.
Marker follows a lead on a shoplifting case from Brighton to Windsor, straight into the arms of the police.
A suspect proposition brings Marker into contact with stolen goods.
A case of blackmail puts Marker in the firing line and he gets his office turned over as a result.
Marker has to bone up on the fine arts when he is asked to investigate a counterfeit paintings scam.
A missing person case turns sour when Marker suspects that he's being used to get to someone.
Marker has to be very discreet indeed when he investigates a theft at an exclusive home for genteel ladies.
Marker is hired to investigate the motives behind a suicide, but the more he digs the more sinister the situation becomes.
A routine background check leads Marker into the murky world of credit fraud.
Marker is asked to check on a suspected infidelity, but his investigations turn up something altogether more unexpected.
Marker encounters conflicted loyalties when he's asked to track down a father who has abducted his own son.
Marker is hired by a rich American to track down the English branch of his family tree.
Marker is asked to keep an eye on a daughter whose suspect friends may be responsible for a string of petty thefts.
Marker helps a suspended policeman but he has to act carefully when he discovers that the officer is consorting with known criminals.
Marker investigates the questionable bankruptcy of a local businessman who continues to enjoy the high life.
A businessman asks Marker to track down his missing daughter after seeing her in a soft-porn film.
Marker is hired to investigate the credit-worthiness of a young doctor's wife.
Marker is hired to look after a cat while its wealthy owner visits a health farm, and discovers that someone has been robbing her.
A man calls to ask Marker to find out whether his wife is having an affair, but ha has a hidden agenda.
A regular client asks Marker to investigate his wife for alleged adultery… while she engages an amateur detective to keep tabs on her husband.
Marker is hired to establish why a housekeeper received a large bequest from her late employer.
A former public schoolmaster asks Marker to trace a missing student.
Marker investigates the apparent theft of a new breed of rose.
Marker's ex-landlady asks him to investigate her son's new employer.
A woman asks Marker to find out whether her football-fanatic husband has been "playing away".
A church warden hires Marker to find out who is behind a series of "poison pen" letters accusing the new vicar of sexual impropriety.
Marker saves a hotel resident who has attempted suicide, then tries to find out why an apparently privileged young woman would want to die.
Marker tangles with some gangsters over a horse-doping racket.
Marker considers a change of career after his beating, but agrees to take on a case involving tenants who are in arrears.
Marker reluctantly decides to gets his own back on the people who attacked him. An ex-policeman has a business proposal.
Marker, now working with Ron Gash in Walton, pursues a debt owed to a local craftsman by his brother-in-law.
A woman asks Marker to gather evidence of her husband's adultery.
A man hires Marker to trace his missing wife.
Marker, now relocated to Chertsey, is hired by two shady businessmen to trace a former partner.
An eccentric old woman hires Marker to protect some rare orchids from theft or interference.
A businessman asks Marker to trace his radical activist son.
A middle-aged man engages Marker to trace his wife, whom he claims is living with another man, but he has lied and it is the man he is really interested in.
A concerned woman asks Marker to investigate her father, the chief clerk at an engineering firm.
Marker is engaged to track down a former council employee who has accepted bribes from a corrupt property developer.
A hotelier hires Marker to investigate her daughter-in-law's suspicious behaviour.
Nobody Kills Santa Claus / It Must Be The Architecture - Can't Be The Climate Extract, 3 minute Clip Of Only Known Footage From This Episode / Interview With Roger Marshall / Interview With Alfred Burke / PDF Scripts, Episode Guide & Filmography
