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During her wedding ceremony, Rachel (Piper Perabo) notices Luce (Lena Headey) in the audience and feels instantly drawn to her. The two women become close friends, and when Rachel learns that Luce is a lesbian, she realizes that despite her happy marriage to Heck (Matthew Goode), she is falling for Luce. As she questions her sexual orientation, Rachel must decide between her stable relationship with Heck and her exhilarating new romance with Luce. Wikipedia