Corn (2004)

Emily returns to her family's sheep farm in rural Pennsylvania after an affair with the politician who has fathered her baby. Doubted by the community she has returned to, she questions her own sanity as she tries to discover what is happening. Her journey takes her on a trip down the food chain, as she tracks a potentially life-threatening byproduct from the cornfield to the supermarket. Ultimately she has to confront psychological demons that haunt her as she grows into motherhood, and comes to terms with her own biology.