A theatrical weekend retreat turns into a lethal trap when a snowstorm isolates a group of bitter enemies, forcing them to confront a murder within their own ranks. The host, Jonathan Royal, orchestrates a social experiment by inviting guests with deep-seated animosities to his estate, intending to observe the resulting friction. When one of the guests is found dead, the group finds themselves trapped by the elements, leaving them to navigate suspicion and mounting paranoia. Chief Detective Inspector Roderick Alleyn enters the scene to dismantle the complex web of alibis and hidden motives, focusing his investigation on the enigmatic behavior of the household staff. The narrative follows the classic whodunit structure, utilizing a third-person perspective to track the psychological maneuvering of the suspects.

This novel is widely regarded as a quintessential example of the Golden Age detective tradition, praised for its sharp character studies and intricate plotting. Readers often highlight the cleverness of the central premise, which uses the host's love for drama to heighten the tension among the guests. The inclusion of Roderick Alleyn provides a steady, analytical anchor amidst the volatile social dynamics of the suspects. The work is frequently cited for its atmospheric use of the winter setting to isolate the characters and force a resolution. It remains a staple for those who appreciate the methodical, puzzle-oriented approach to classic crime fiction.