After finishing school, three friends go to Chiatura for work. Two of them start working in a black stone mine, and the third, Bondo, works as a driver in a lumber yard. Friends' paths divide here. With the advice of the warehouse manager, Bondo gets used to easy income and does not shy away from dark affairs.

A respected philatelist is murdered in his own apartment, leaving only one inconspicuous stamp stolen from his collection. The seemingly unmotivated murder leads prosecutors on a trail of a dangerous criminal.