Accomplices (original title: Complices) is a 2009 Franco-Swiss crime thriller film directed by Frédéric Mermoud.
[2] Two police detectives in Lyon, both single and childless, are investigating the murder of a young man called Vince, whose body is found strangled in the river Rhône.
His girlfriend was a student, Reb, who he recruited to join him in threesomes, so increasing his range of clients and his earnings.
Furious at the way Reb had been treated, Vince decided to blackmail the man and arranged a rendezvous on the top floor of a multi-storey car park.
After handing over the money, the client then attacked Vince with a golf club, upon which Reb waded in with her motorbike helmet.