Three girls shared the same London flat. The first worked as a secretary; the second was an artist; the third came to Poirot for help, convinced she was a murde... » 

Three girls shared the same London flat. The first worked as a secretary; the second was an artist; the third came to Poirot for help, convinced she was a murderer. But without hard evidence, it would take all Poirot's tenacity to establish whether the third girl was guilty, innocent or insane. «