Per Sonypictures.com, here is the official Synopsis for Proud Mary:
Taraji P. Henson is Mary, a hit woman working for an organized crime family in Boston, whose life is completely turned around when she meets a young boy whose path she crosses when a professional hit goes bad.
Proud Mary will hit theaters on January 12, 2018. The film stars Taraji P. Henson as Mary, Billy Brown, Jahi Di’Allo Winston, and Danny Glover.