Black Coffee by Agatha Christie

When a top-secret formula is stolen and its creator murdered, Hercule Poirot is called in to untangle the mystery. Set in a household full of secrets, suspicion, and sudden death, Poirot must navigate a maze of motives. Originally a stage play, this adaptation brings all the classic Christie elements to life: poison, hidden identities, and a brilliant detective. Black Coffee is an engaging and quick-paced mystery full of charm and suspense.