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 18yearold 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 selfproclaimed ethnopsychiatrist who has been researching the problems experienced by Frances many immigrants particularly African ones as they wrestle with the clash between their native beliefs and their new culture