Birthday (2001)

Emotionally stormy Bibiana, temperamental Claudio, sexually adventurous Harald, and secretive Tamara were close friends in their college days, but the four had a falling out and have not seen one another in close to a decade. As the four are edging into their thirties, Bibiana decides its time for a reunion, and invites Claudio, Harald, and Tamara to her apartment for a dinner party. However, after a long evening of conversation, Bibiana has a surprise for her guests...