A manipulative mother, Susan, arrives at her son Bradley's home, claiming his father cheated on her and asks to stay. Bradley allows her, but his wife, April, is suspicious. Susan tries to create tension between Bradley and April by lying and manipulating situations. Eventually, Bradley learns the truth that it was his mother who cheated, not his father. In the end, Bradley sides with April and asks Susan to leave, choosing to protect his marriage from her toxic influence.