The dawning of the day across the interior of a shared home and the slow awakening of the occupants. A poster on the wall says 'Sisterhood feels good'.
The children Sonja and Helmut Schmitt have lost their parents in a car accident. At first, their grandmother takes over the supervision and care of the two.
Richard is a private detective. He makes a good money from marital infidelity: the deceived husband and wife generously paid him for proof of their infidelity "halves".
Gardener Napoleone takes a job in a southern-Italian villa and quickly finds himself embroiled in a menage-a-trois with Paola and her mother, which soon leads to sex, death and mayhem.
A petty criminal fakes insanity to serve his sentence in a mental ward rather than prison. He soon finds himself as a leader to the other patients—and an enemy to the cruel, domineering nurse who runs the ward.