A chilling Hollywood murder mystery unfolds in this full episode of "48 Hours." When a producer's girlfriend is brutally murdered, investigators delve into a web of Russian mob connections, tangled love affairs, and a graphic novel that may hold the key to solving the case. Maureen Maher's gripping investigation will leave you questioning everything. Was it the mob, a scorned lover, or something far more sinister? Watch now and uncover the shocking truth!