When an unknown body surfaces in the icy East River, Barbara Butcher joins detectives in a race to reconstruct the victim's identity using the few fragile clues left behind; pressure mounts when a report comes in that there may be more victims.

When a garbage bag containing a young woman's body is dumped in a NYC tunnel, Barbara Butcher and a rookie homicide detective unravel how a seemingly straightforward crime conceals a chain of forensic contradictions - and a killer no one saw coming.