Puccini for Beginners

When her inability to commit leads to a breakup with her girlfriend (Julianne Nicholson), opera-loving writer Allegra (Elizabeth Reaser) winds up in the bed of amiable professor Philip (Justin Kirk) . He is so smitten with Allegra that he dumps his lover, Grace (Gretchen Mol), and convinces Allegra to continue their affair. When Allegra meets Grace, sparks fly, and she begins a parallel romance, unaware that her new lover is the woman Philip left to be with her.