Diamant 13

A cop goes up against his lifelong friend, who has become one of the city's biggest drug traffickers. Mat is an aging, worn police officer. One day he is present when a criminal takes a female hostage in order to use the woman as a human shield. Mat refutes this strategy by shooting the man dead. The hostage remains unharmed but Mat knows all too well his action could have gone awry very easily. So afterwards he throws up and indulges himself to binge drinking. His constant enervation and his alcoholism have rendered him unacceptable as a law enforcer.