The Intruder follows an ambitious young Dutch-Moroccan policeman who infiltrates one of the most notorious criminal families in Amsterdam and finds himself torn between his conscious desire for recognition in his profession and his unconscious desire for a home and an identity.

The child of a Dutch mother and a Moroccan father, twenty-eight-year-old Sam Almaleh (Nasrdin Dchar) has always lived between two worlds. He joined the Amsterdam police force to prove his worth and find acceptance, but he also wants to prove something to those of his countrymen who insist on maintaining viciously racist attitudes toward Moroccans.

When Sam is ordered to go undercover and infiltrate a Moroccan drug family, he is initially galvanized by the opportunity. But the deeper he embeds himself in the family's inner circles, the more he realizes that he may have found something like a real family, one that offers him the feeling of brotherhood that has until now eluded him. He also begins to see the ways in which these criminals can be honourable and the authorities corrupt. As pressures from both sides mount, Sam needs to decide: on which side does he truly belong?