At one point, Rivera had an affair with Kahlo's younger sister, Cristina. The couple would eventually divorce in 1939, only to remarry in 1940. Unfortunately, their second marriage wasn't any smoother than the first. After finding out about Rivera and Cristina's affair, Kahlo didn't draw for a year.

When she got back to her easel, she painted this work above. It was inspired by a murder she read about in the local newspaper, which was about a man who believed his wife had cheated on him and stabbed his partner 20 times. Dark.