Chained 2012 DvdRip Mp4

A young boy and his mother get kidnapped by a strange man disguised as a taxicab driver, unknowingly at the end of the journey the strange man takes the mother and son hostage in his garage, proceeds to kill the young boys mother then keeps the boy locked up for several years as a pet.
A very good twist to this movie, edge of the seat stuff, very well directed...Will leave you in tears at the end...