A mysterious ad appears in the newspaper with the words "Ars Morendi". A group of people meet in a secret location to bet on the outcome of 'Russian Roulette' games where a person's life is at stake.

With Marc's Birthday today, Niki takes time off to decorate his apartment and receive his present, a gym set. While she is there though she is attacked and held hostage. Rex is sent in to help Niki, and Marc finally shows his feelings for her.