Two years after the tragic death of his older brother Robbie, seventeen-year-old Daan finds himself anchoring a family completely shattered by grief, with his mother Nina locked away in her sorrow and his father Filip escaping entirely into his work. The fragile household structure is completely upended when Nina crosses paths with Radja, a charismatic but deeply mysterious homeless teenager, and impulsively invites him to stay in their home to fill the painful void left by her deceased son. While Nina embraces the surrogate boy with naive desperation, a deeply suspicious Daan begins investigating Radja’s dark, hidden past, setting off a slow-burning, dangerous psychological game as the intruder systematically manipulates the family's fractured dynamics.