A brilliant young man with an obsession with the Sherlock Holmes series joins an investigation into a series of gruesome murders in New York—but his mysterious motives test the lead detective on the case.

After a 12-year-old girl goes missing in Boston, an unlikely alliance forms between a private investigator and a cop from out of town who is investigating a cold case murder.

A couple moves into an old, country farmhouse and is touched by a sentimental grave. One day, a man arrives after being released from a mental hospital, tells the couple it's the grave of his beloved pet, and asks to dig it up; however, police detective intervenes and arrests the man. It turns out the man is a serial killer and the grave holds a suitcase full of trophies from his former victims.

A detective investigates a murder at a school in an alternate end-of-19th-century Europe where time can be manipulated for personal vendettas.

In a small, American, Southern town shortly after the civil war, a deputy and a nurse investigate the murder of a businessman from Michigan. The murderer turns out to be someone they'd never have expected.

A local detective investigates the murder of a businessman who returned to town after years of being away. The detective holds a conflict of interest in the case: his sister was swindled years ago by the victim.

A young detective is sent to photograph a cold case crime scene where he unravels the mystery by chance.

An English detective sets out to determine an old war general’s murderer, investigating his family history and property inheritances.

The investigation of a Black teenager's suspicious murder leads a private investigator into a web of mafia conspiracies, corporate cover-ups, and a quest to expose environmental racism.

Three women are murdered. After they become the talk of the town, everyone speculates about what happened to them, and the police investigating the case receive one false piece of evidence after another another.