While on an investigation into a series of grisly murders, veteran detective Dave Robicheaux (Tommy Lee Jones) navigates his way through the Louisiana bayou and the dark, sultry world of New Orleans mobster "Baby Feet" Balboni (John Goodman). Layers of corruption and long-dead secrets reawaken grudges and a lethal alliance A tangled web of killings, past and present, converges in a shocking showdown with stakes that become deeply personal to Robicheaux and his family.