Suspects is about the team Criminal Intelligence of the Amsterdam police. They have to deal with eight modern crime cases that are difficult to solve. The team hooks up in each case in order to complete it successfully.

When an American tourist is murdered in the south of France, the police must investigate. In this movie, the police inspector re-creates the girl's journeys through France until the murder is solved. Suspicions are narrowed down to four possible perpetrators early on, and flashbacks illuminate the roles each one played in the girl's vacation.

A whodunit with humor breaks down the fourth wall as wisecracking Det. Marshak solves crimes along with the at-home viewer, whom he treats as a rookie partner.

On the first day of opening, a small Italian restaurant is set on fire, killing three customers, and the unidentified survivor, who was injured and taken to hospital, somehow escapes. Detective Tono and his team, who are renowned for their interrogation skills, realise from evidence left at the scene that there are still survivors who have fled the scene. After obtaining information about the customers from the owner-chef, who was slightly injured, Tono visits the suspects, but they all seem to be acting strangely and are hiding something. The hidden relationship between the suspects, who seemed unrelated, is then revealed.