Donnie Brasco movie plot

In order to combat the forces of the Mafia, the US Federal Bureau of Investigation appointed Detective Joe Pistone under the pseudonym Donnie Blascointo the undercover gang. Through a jewellery business, Joe got to know the gang leader Lefertyand was appreciated by him. In order to gain the trust of Lafferty, Joe had to do nothing evil and participated in a series of criminal activities. But as the longer contact with Lafferty, Joe actually developed a friendship with Lafferty, and his attitude towards others also changed. Because of the over-commitment in work and the neglect of the feelings of the family, the wife has been separated from it. During this period of hesitation, he did not send information to the FBI on time, and Laverty had already complied with his uncontrollable ambition to seize power with Downey's plan to kill the boss. Unexpectedly, the FBI had lost contact with Joe for a long time and sent another person to follow up and monitor, which led to the exposure of Lafferty's plan. The situation has undergone drastic changes.