A series of murder victims are found posed as marionettes, and Balthazar can't help but come back to help solve the problem even though he is wanted by police.
Under house arrest, Balthazar passes the time by spying on his neighbors and witnesses a teenage boy hanging himself with a duck mask over his face. Meanwhile, a figure in a duck mask kills three strangers in Paris. Is there a connection?
A minibus is found in a field with it's passengers missing, the driver mentions seeing a bright light. Could it be aliens? Things get even stranger after mutilated bodies turn up in a crop circle nearby-but not the people who disappeared.
A father, mother and son are executed at a roadside rest stop, but the victims were posing a family to transport drugs-which are now gone. Following the trail back to the dealer, Balthazar and Camille wind up in a dangerous contest.
Maya escapes from prison with Alexandre's help. Their plan becomes clear when Camille wakes up in a coffin, with a live feed playing at the institute. But that's only the start of the deadly game between the Balthazar brothers.
