Collects four classic theatrical who dunnits, including mysteries surrounding the fatal reunion of two lovers, an act of kindness that leads to a charge of murder, and the daughter of a murderess investigating her mother's case.The Mousetrap is the longest running play in the history of London's West End. Witness for the Prosecution- a stunning courtroom drama.And Then There Were None- 10 guilty people brought together on an Island.Appointment With Death- the suffocating heat of an exotic middle Eastern setting provides the backdrop for a Murder.