S1, E4: After a quarrel with her husband, Lisa leaves home. The next day she is found unconscious in the forest. When she comes round, it is clear that Lisa has lost her memory. Irina, a receptionist at the local private hospital is attacked, but a casual passerby intervenes and saves her. Is there a link between Lisa's amnesia and the attempt on Irina's life? Russian series with English subtitles.