Ringer

A young woman named Bridget Kelly was the only witness to a mobster murdering a stripper. When it comes time to testify, however, Bridget suddenly flees her police protection and runs to New York to visit her twin sister Siobhan Martin. After her sister vanishes, Bridget decides to hide out by taking her place and discovers that her sister's life is far more complicated than she thought.

Starring Sarah Michelle Gellar, Ioan Gruffud, Kristoffer Polaha and Nestor Carbonell.