Detectives Shaw and Shade are more than your average crime solvers; they are Spirit Walkers. When they catch a gruesome murder, they're able to discern the killer has been active since the end of WW2 and the number of killings seem to be increasing in frequency. They have one lead - Feather Woods - who appears to have known each of the victims. Is she being stalked or is she the culprit? The detectives race to find out before Shade becomes the next victim.