Dog Watch (1996)

A San Francisco detective Elliott goes wild when he discovers his partner dead and the presumed culprit standing over him After beating the man to death he comes to his senses and realizes that he has to get rid of the body of the beaten man Dumping the man in the river he returns to his partners body and calls in the death He is then given a new partner Morales and is assigned to investigate the death of a man just pulled from the river causing all the expected problems However the investigation does lead to police corruption and his own partners involvement in drug running