Ambulance driver Frank Jessup is ensnared in the schemes of the sensuous but dangerous Diane Tremayne.

Over the course of a decade, editors of the San Francisco Chronicle entice themselves in the murders of the Zodiac Killer. However, as time runs its course, interest in the case dwindles in the eyes of the professionals. The Killer stops interacting with the public. However, believing he has the answers, an amateur cartoonist from the initial sightings races against time to prevent what he believes is another murder.

While doing a friend a favor and searching for a runaway teenager, a police detective stumbles upon a bizarre band of criminals about to pull off a bank robbery.

When a woman's father goes missing, she enlists a local to aid in her search. The pair soon discover that her father has died at the hands of a wealthy sportsman who hunts homeless men as a form of recreation.

On his first day on the job as a narcotics officer, a rookie cop works with a rogue detective who isn't what he appears.

In the third and final episode of the trilogy, Fantômas imposes a head tax on the rich, threatening to kill those who do not comply.

Kathy leaves the newspaper business to marry homicide detective Bill, but is frustrated by his lack of ambition and the banality of life in the suburbs. Her drive to advance Bill's career soon takes her down a dangerous path.

Charlie is a former classical pianist who has changed his name and now plays jazz in a grimy Paris bar. When Charlie's brothers, Richard and Chico, surface and ask for Charlie's help while on the run from gangsters they have scammed, he aids their escape. Soon Charlie and Lena, a waitress at the same bar, face trouble when the gangsters arrive, looking for his brothers.

After being hired to find an ex-con's former girlfriend, Philip Marlowe is drawn into a deeply complex web of mystery and deceit.

Mrs. Elizabeth Bright Murdock hires Marlowe to find an old rare coin, the Brasher Doubloon, that belonged in her deceased husband's collection. Marlowe begins investigating, but quickly finds himself entangled in a series of unexplained murders.

Private eye Phillip Marlowe wants to get out of the detective racket and into crime writing. But when he's called to the office of editor Adrienne Fromsett, it's not to talk about his story ideas — she wants him to locate the missing wife of her boss, Mr. Kingsby. The assignment quickly becomes complicated when bodies start turning up.

In 1970s Hollywood, Detective Philip Marlowe tries to help a friend who is accused of murdering his wife.