The adventurous Peter Paul worked his way up through the police force from the late 1990s to become a specialist in the Special Investigative Applications Service (DSRT), better known as the 'stealth section'. As an undercover agent, he found himself among the Netherlands' most notorious criminals, placing listening devices in cars, houses and flats, once even dangling from a block of flats. But after a period of highs - also on a personal level - Peter Paul finds himself in a free fall and several years later sits at home alone with his service weapon, full of compulsive thoughts about suicide. Eventually, he is diagnosed with occupation-related PTSD. Can Peter Paul regain his grip on reality?