Natural Selection (2011)

Linda White, a barren Christian housewife, leads a sheltered existence in suburban Texas. Her world is turned upside-down when she discovers that her dying husband, Abe, has a 23-year-old illegitimate son named Raymond living in Florida. Somewhere on the edge of guilt and loneliness, Linda grants Abe's final wish and sets off on a quixotic journey to find Raymond and bring him back before her husband passes away. Along the way, Linda's wonderfully bizarre relationship with Raymond will teach her more about herself than she ever imagined possible and force her to come to terms with her troubled past.