A mysterious series of police murders shakes the Peixoto District in Rio de Janeiro: Three of Commissioner Espinosa's colleagues were shot at close range. He suspects that the perpetrators have connections to the police, possibly even from their own ranks. For Espinosa, one thing is clear: he relies solely on Welber, his intelligent and fundamentally decent young colleague. Together they find out: The murdered police officers all led a double life with two apartments and two women each. Then her lovers are also found dead. Only in the case of the sixth victim does the perpetrator have to have been caught by a mix-up. The inspector does everything he can to save the last living affair from its deadly fate, but a far-reaching web of corruption complicates the investigation.