A pair of French detectives enter a different world after they are assigned to solve a puzzling double homicide that occurred in an African neighborhood in Paris. The corpses of the two masked Malian women were discovered ritually mutilated and hanging from a ceiling. The detectives' search leads them to a Malian father and his 18-year-old daughter. The father confesses to the crime, but further investigation reveals that he is lying. Even more puzzled than before, the two investigators consult a noted professor who tries to help them understand the true nature of the crime. The story is based on a book by controversial French academic Tobie Nathan, a self-proclaimed "ethno-psychiatrist," who has been researching the problems experienced by France's many immigrants, particularly African ones, as they wrestle with the clash between their native beliefs and their new culture.

Scott is a US Marine who travels Spain to see his sister Kim, after many years of separation. But she is dead, and there is nothing else to arrive him. Alone in the Madrid's streets, Scott will search for the killers, will try to reveal the reason of the murder of his dear sister, and for revenge for himself.