Nightwaves (2003)

After a devastating accident, sexy Shelby spends her nights at home, listening to a police scanner, feeling safe from the world outside... until danger finds her. Eavesdropping on phone conversations, she thinks she hears a woman's murder. Shelby calls the police unknowingly putting her own life in danger. Alone and frightened, Shelby must fight both the demons of her past and the threat she faces right now. Can she summon the courage she once had and use her mind and body to save herself?