While the mentally-ill inmates of the Therapeupic Community of Martutene prepare a performance about the life of Portuguese psychiatrist António Egas Moniz, who developed the surgical procedure known as lobotomy to treat schizophrenia in 1935, filmmakers Jordá and Villazán (who were mental patients once in their lives) reflect on modern psychiatric therapies. The title refers to the chimpanzee Becky, whose frontal lobes were removed by American physiologists John Fulton and C.F. Jacobsen, to modify her aggressive conduct in the 1930s.