I don't know, I didn't hear, I didn't see

"I don't know, I didn't hear, I didn't see on xfmoviess.com " – Night time Sofia in the middle of the 80s. Bus 108 is doing its final route towards the Lyulin neighbourhood. A short altrecation between the passengers finishes with the death of one of them. While investigating the cruel crime the detectives from the militia face people's indifference.