Not long ago, former police officer Sergei Erokhin worked as a security guard in a store and remembered with longing his wife Larisa, who abandoned him. But the black streak was replaced by a white one - he received a prestigious and well-paid job in a bank. However, Sergei knew that dirty deeds were going on there - recently the body of a man was caught from the Neva, the traces of whose killers led precisely to this bank. And then the immediate supervisor gave Erokhin the task of organizing a crime...