Gwen returns home in secret to attend her son's wedding. Instead, his fiancée, Amber, and her lover, Ryan, mistake her for a mistress and push her off a cliff. Gwen survives by catching the edge, only to face another attempt to silence her. With her son still preparing to marry Amber, she has one place left to confront the lie: the wedding itself. As the vows reach their final moment, the woman they tried to kill appears, ready to stop the ceremony and expose them both.
