David Leader investigates a seemingly senseless murder, and in the course of it is drawn into the labyrinth of a sinisterly unique wealthy family. The family seems to revolve around its own beautiful and mysterious daughter, Emma Burgess, and soon Leader is deeply within her orbit as well.
Gianni is a political man with a good career waiting for him. Angela is his wife and she fakes an assault and a rape in a cinema. Eva is Gianni's lover and Angela's friend. Gianni and Eva decide to use the pretext of the assault to kill Angela. Later on Angela is blackmailed by a man who was present at her act. In the background there are Rosy, her maid always present, and a puzzling man who appears and disappears and makes strange phone calls.
Pascale, married to an architect, misses her flight to London and is forced to stay in Berlin, at the Kleinhoff Hotel where she stayed as a student. Karl, a would-be revolutionary lives in the adjoining room and Pascale spies him and his ex-girl-friend through a hole. Then she follows him to a questionable place where she is arrested by the police during a revolutionists raid. When she returns to the Kleinhoff Hotel, Pascale finds Karl crying, and enters his room to console him and they have a love affair. When Karl kills himself while she sleeps, Pascale, on awakening, coldly dresses and leaves the hotel.
A telegram has just arrived ant the Persichette home in Italy. It seems that their late grandfather's second wife, Maria Juana, is traveling from Venezuela to Italy to visit her stepson and two grandchildren. The youngest of the boys is given the task of picking up grandma at the airport. Expecting an aged widow, he is stunned , amazed and aroused by the incredible beauty that awaits him.
