A killer is stalking Çıngıraklı, a tight-knit Gypsy neighborhood with little regard for outsiders. He leaves three pennies on each of his victims as a sort of calling card, and the case is assigned to the Organized Crime Unit. Its captain, Efe, initially suspects Kartal, a Romani Mafioso who is the neighborhood “protector” and Efe’s chief nemesis. But in time Efe realizes that Kartal can’t be the killer. Eventually the cop and the crime boss form an uneasy alliance to find Çıngıraklı’s “Three Penny Killer.” Their mission changes both men. Efe has always looked at Kartal’s neighborhood as a breeding ground for criminals and lowlifes, but this case helps him see things from the Romani perspective, and in time he falls in love with a young Gypsy woman. For his part, Kartal becomes involved with the daughter of an enemy, as the code he lives by starts to erode. The unexpected connection between the Three Penny Killer and Kartal’s tragic past will call into question everything he believes.