Everyyear,310killingsinFrancegounsolved,leavingthevictims'crushedfamiliesinastateofendlessgrief.TheFrenchjudicialsystemisimplacable:there'snomoneytocontinueinvestigatingcasesthatleadnowhere.Huntingdownmurdererstohelpbereavedfamiliesgetjusticeismorethanjustajob,it'sadutyforThomasBareski,aretired,hotshotpolicedetective.Awandering,footloose,nature-lovingsoulwholivesoutofhisvan,ThomasBareskiisn'tjustaone-of-kindman,he'salsoanextraordinarypoliceofficerwho'sreadytoupendhiswayoflifetofulfillhismission.
