Having one of her sons at university (me); one in the upper 6th form and one about to start secondary school, I often take for granted the amount of stress my mother may go through on a day-to-day basis, but at least she hasn't attempted anything like THIS when my Dad goes on a business trip!
Postpartum psychosis is a condition by which women experience a sudden onset of psychotic symptoms after childbirth, that may include thought disturbances, delusions, hallucinations and/or disorganized speech or behavior. This film, based on the horrific crimes of Andrea Yates who killed all 5 of her children in a bathtub, is the worst case scenario for postpartum psychosis! Some of the acting and dialogue is questionable, but surely its to be expected with this type of film? The chase sequences are thrilling (utilizing various types of farm equipment to keep the mother at bay), and the murder scenes deeply unsettling with plenty of blood and gore not going to waste.
Overall, if you're not put off by the idea of a mother murdering her children, then this film is a non stop, nail-biting adrenaline rush. I recommend it :D