It's winter in Glasgow, and someone is killing prominent members of the city's Jewish community. Lou Perlman, a jazz-loving, Celtic-supporting streetsmart DS who seems to buy his suits from Oxfam, is on the job. But what he discovers will rock his foundations of his life, and the city he lives in. It's winter in Glasgow, and someone is killing prominent members of the city's Jewish community. Lou Perlman, a jazz-loving, Celtic-supporting streetsmart DS is on the job, but the dark secret he uncovers in his own community will cast a shadow over his own life.