Poirot is bored, as he has had no murder case for several weeks. A few hours later, that night, he finds himself disturbed in his apartment by the strange shooting of Mrs Grant, a resident of his own building. Two young couples find the murdered woman's body in the third-floor flat below Poirot's, and it soon appears that bigamy may be the key to the mystery.
Elenco: David Suchet , Hugh Fraser , Philip Jackson , Pauline Moran .