The Scuttlers (1920)

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

A private investigator helps a former flame solve the murder of her wealthy grandfather, who lived in a sprawling estate surrounded by his idiosyncratic family.

After a cheerleader is sexually assaulted by the high school football team, she must overcome her shame and use the evidence gathered from the subsequent social media firestorm to piece together the night that she can't remember in her fight for justice. Based on the true story of the Steubenville, Ohio rape case.

Early in his crime-solving career, Sherlock Holmes attempts to prevent Moriarty from cornering the heroin market.

Jamie Fitzpatrick and Nona Alberts are two women from opposites sides of the social and economic track, but they have one thing in common: a mission to fix their community's broken school and ensure a bright future for their children. The two women refuse to let any obstacles stand in their way as they battle a bureaucracy that's hopelessly mired in traditional thinking, and they seek to re-energize a faculty that has lost its passion for teaching.

Mary Morstan has received a pearl in the post every year since her father's disappearance. This leads Holmes and Watson to the truth about a secret pact between four convicts during the Indian Rebellion of 1857.

The story of a young boy in the Midwest is told simultaneously with a tale about a young girl in New York from fifty years ago as they both seek the same mysterious connection.

Travelling on the 4.50 from Paddington, Mrs McGillicuddy witnesses a murder on a passing train - but where is the body?

In 1947, long-retired and near the end of his life, Sherlock Holmes grapples with an unreliable memory and must rely on his housekeeper's son as he revisits the still-unsolved case that led to his retirement.

In Acapulco, Hercule Poirot attends a dinner party in which one of the guests clutches his throat and suddenly dies. The causes seem to be natural until another party with most of the same guests produces another corpse.