Agatha Christie's Poirot (1989)
S11E03 Third Girl
Episode Overview
In London, three single women share an apartment. One is a secretary, the second pursues a career as an artist, and the third seeks Poirot's assistance, convinced she has committed murder. Shortly thereafter, she vanishes, prompting Poirot to unravel the mystery surrounding her troubling beliefs and the circumstances leading to her disappearance.