The inside of the truth

The case of Samsonov, accused of murder, was conducted by the investigator Petelin. One of the witnesses suddenly admits that she gave false testimonies against Samsonov, and he is innocent. Now Petelin is accused of a biased investigation. In the meantime, they want to remove Samsonov. His death is very beneficial to a certain Barinov. The murdered wife of Samsonova was the heiress of the owner of large business centers. After her death and the arrest of Samsonov, the actual owner of the profitable company was the financial director of Barinov. He is extremely interested in Samsonov to disappear and hires an anonymous killer.
Petelina will try to restore justice and save the life of the innocent. Fix your mistake, even if you have to sacrifice yourself