Las vidas secretas de las mujeres de los asesinos

California, 1966. Beverley, Elsie, and Margot are three friends who share a tumultuous past: being the wives of some of the country's most notorious serial killers. Now that their husbands are either dead or behind bars, they try to forge a new future while enduring the neighbors' gossip. They know that when people look at them, they only think one thing: how could they not have noticed what was happening in their own house? However, when the news begins reporting a series of murders in the area, the three women, tired of being underestimated, decide to launch their own investigation. After all, who better to catch a killer than those who have shared their lives and their home with one?