Upon further investigation, Francis is shocked to learn that Caligari is the asylum's director. With help from the asylum staff, Francis studies the director's records and diary while the director is sleeping. The writings reveal his obsession with the story of an 11th-century monk named Caligari, who used a somnambulist named Cesare to commit murders in northern Italian towns. The director, attempting to understand the earlier Caligari, experiments on a somnambulist admitted to the asylum, who becomes his Cesare. The asylum director screams, "I must become Caligari!" Francis and the doctors call the police to Caligari's office, where they show him Cesare's corpse. Caligari then attacks one of the staff. He is subdued, restrained in a straitjacket, and becomes an inmate in his own asylum.