The Parasites is a study into the lives of the Delaney family: Mama, a famous dancer, and Pappy, a successful singer, and their three children, Maria, Niall and Celia. The story begins one day in the 1940s when Niall and Celia, now adults, are spending the weekend at the home of Maria and her husband, Charles. It’s Charles, losing his temper with them, who refers to the three siblings as ‘parasites’…