What Have I Done to Deserve This?

In a chaotic Madrid household, a housewife named Gloria navigates her dysfunctional family, working as a cleaning lady to support her loved ones. Her husband, Antonio, a taxi driver and forger, harbors a secret passion for a decadent German singer. Meanwhile, Gloria's sons struggle with their own issues: one is a drug dealer, and the other is gay. As the family's problems escalate, Gloria's addiction to pills worsens, and her best friend, a call-girl named Cristal, provides a listening ear. When a writer approaches Antonio with a scheme to forge Hitler's letters, the family's lives become even more complicated. Amidst the chaos, Gloria's son is taken to a pervert dentist, and her mother-in-law finds a lizard they name Dinero. The family's tensions come to a head when Gloria kills Antonio in a fit of rage, leading to a police investigation that exposes the dark secrets of the household.