Eden (2007)

For cafe waitress Eden, paradise is the "Cucina Erotica" created by master chef Gregor. Trapped in a monotonous marriage to dance teacher Xaver, Eden falls platonically under the spell of the eccentric and happily rotund Gregor, who runs a restaurant with just three tables and serves her delicacies with libido-enhancing ingredients. When her sex life with Xaver suddenly spices up, he becomes suspicious of the gourmet and decides to take action. In a small town with no secrets, this unusual menage-a-food takes unexpected, bittersweet twists.

Official website: http://eden.pandorafilmverleih.de/