Victor Nikiforov, a highly esteemed operative of a criminal investigations agency, is assigned to the case of the mercenary by the name 'Eros'. They're notoriously elusive, hardly ever leaving a trace, only enough to identify it was them who was there. To pursue Eros' real identity and actually apprehending them seems impossible. Viktor is already busy as it is, and now he has to chase a ghost story to an end he doesn't see. He doesn't expect this to be easy at all.
At least the ice skating instructor who works in the rink across the street is cute.