A woman is sent to a mental institution after stabbing her classmate in an attempt to conjure an evil spirit called, Mercy Black. Fifteen years later she's released, and must save her nephew, who has become obsessed with the phenomenon.
Mercy Black - watch online: streaming, buy or rent
Currently you are able to watch "Mercy Black" streaming on Netflix. It is also possible to buy "Mercy Black" on Apple iTunes, Google Play Movies, Amazon Video, YouTube, Sky Store as download or rent it on Apple iTunes, Google Play Movies, Amazon Video, YouTube, Sky Store online.