A Russian priest is killed in a church and a bag buried below the altar is stolen. The Russians are incensed. The local police have a clue and hunt for the killer. Suddenly, a severed head of a woman is found on the floor in a ball.
Tane notes that the victim and Maya were similarly dressed at the costume party. While interrogating Maya and Vojin, Tane soon concludes that Maya is Vojin's mistress.
At the photo shop, Tane and Stanko discover that Neven was killed for the pictures of the costume party. Meanwhile, Taneta is still suspicious of Maya, so he takes her to Glavnica and examines her purse.
Tane, barely alive, finds Niski with her people and leads him to Prsa. Tane learns from Niski that Krojac is a war veteran and that in the past he has been in contact with the famous Tankosic and his "black arm boys".
Tane finds Stanko in a bar. Tane tells him to go to Toponica and talk to Prince Djordje , the author of the painting "The Black Sun", which hangs on a wall in Avakumovic's house.