The Cretan Bull

Diane Maberly is clearly upset when she comes to see Poirot and tell him that her fiancé has broken off their engagement because he thinks he is going mad. Poirot has to find out for himself why this handsome man is charging around like a bull. Could it really be that insanity runs in his family?

First published in 1939 in the US in This Week magazine under the title Midnight Madness and in 1940 in the UK in Strand Magazine. It was included in the collection The Labours of Hercules in 1947, which was adapted for TV in 2013, as part of the final series of Agatha Christie's Poirot.