Samantha Morton & Michael Shannon are incredible in this film, in my mind they are both very versatile actors anyway but Samantha is perfectly disturbing & at times psycho & Michael plays the emotionally abused husband brilliantly, there are plot twists & it has tons of drama.
The young actors Natasha Calis & Charlie Tahan play their parts to perfection, a strong cast all round, highly recommend but wouldn't dream of giving the plot away!