Conundrum

Demoted Pittsburgh cop Tom Hardy works river patrol while a serial killer targets women from his past, forcing him to conduct an unauthorized investigation to prove his innocence and expose a dirty cop.

Police Lieutenant Lon McQ investigates the killing of his best friend and uncovers corrupt elements of the police department dealing in confiscated drugs.

When Jesse Stone looks into the murder of a teen-age girl whose body is found floating in a local lake, it brings him up against the Boston mob and into the affluent world of a bestselling writer who exploits troubled teens.

Police Chief Jesse Stone's relationship with his ex-wife worsens, and he fears he's relapsing into alcoholism. To get his mind off his problems, Jesse begins working on the unsolved murder of a bank teller shot during a robbery. Also, his investigation of an alleged rape draws him into conflict with the town council — which hopes to preserve Paradise's reputation as an ideal seaside resort.

Police Chief Jesse Stone, who was suspended by the Paradise, Mass. Town Council, begins moonlighting for his friend, State Homicide Commander Healy, by investigating a series of murders in Boston, leaving Rose and Suitcase to handle a crime spree in Paradise on their own. Jesse pours his energy into his work in an effort to push away his twin demons: booze and women. When his investigation leads to notorious mob boss Gino Fish, Jesse's pursuit becomes hazardous.

Jesse finds himself struggling to get his job back as the Paradise police chief, and he is forced to rely on his cop intuition to sort through a maze of misleading clues and hidden meanings as he attempts to solve a shocking and horrifying mob-related double homicide.

Danny is a young cop partnered with Nick, a seasoned but ethically tainted veteran. As the two try to stop a gang war in Chinatown, Danny relies on Nick but grows increasingly uncomfortable with the way Nick gets things done.

When Erin Bell was a young cop, she was given an undercover assignment that ended badly and destroyed her life. Years later, she must face her demons in order to make peace with her past.

Jesse investigates the suspicious death of a young friend while the police force deals with the arrogant new police chief who is the son-in-law of a town councilman.

Two veteran New York City detectives work to identify the possible connection between a recent murder and a case they believe they solved years ago; is there a serial killer on the loose, and did they perhaps put the wrong person behind bars?

All bets are off when shady homicide cop Rick Santoro witnesses a murder during a boxing match. Determined to solve the crime, he quickly learns that his search for answers will only uncover yet more questions in an ever-widening web of conspiracy, intrigue, and danger.

During a murder hunt game at a country house, to which Hercule Poirot is invited as an "expert", a real murder occurs.