A troubled woman on the edge of divorce returns home to her younger sister after years apart. But when her sister and brother-in-law betray her trust, she embarks on a vicious crusade of revenge.

When a substance abuse counsellor gets arrested for a DUI and returns to her hometown of Niagara Falls, she learns that her estranged father is dying of cancer and wants her to form a bond with her teenage half-sister that she’s never met.