21 year-old Isi leads a normal, middle-class life. She has everything she needs to lead a normal life, or at least she seems to be satisfied with what she has. But she is mentally fragile and unstable, a condition which she is able to cover up skilfully with her sarcasm. However, her parents' broken marriage and daily fights; the sudden and unexpected separation from Ben, her boyfriend; her subsequent failure at Art School; and, finally, the stubbornness and cold-heartedness of her "best" friend, all lead to a severe psychotic crisis with suicidal impulses. When her suicide attempt fails, she starts to review her attitude towards life. More or less of her own free will, she volunteers to an alternative psychiatric treatment study called "P.U.L.S.E." (Prosocial Uniting Life Stabilization Experiment) which is headed by Prof Dr Harry van Maast. On the way there she meets Eddy, who is also participating in the P.U.L.S.E. programme. Eddy and Isi enter the P.U.L.S.E. treatment complex and ...