Ma, (2022) Plot Summary & Ending Explained

The ending of Ma reveals that Sue Ann Ellington’s violent spree is a calculated act of revenge rooted in a traumatic high school experience. While she initially appears to be a lonely woman seeking connection with teenagers, her true motivation is to punish the children of her former bullies. Sue Ann specifically targets Andy and Maggie because they remind her of their parents—Ben, who publicly humiliated her in a cruel prank involving a closet, and Erica, who stood by and did nothing. This past trauma is central to understanding her psychology; she was treated like an animal in her youth, which explains her veterinary career and her eventual gruesome murder of Ben, slitting his wrists after injecting him with canine blood. Her actions are a way to rewrite history, forcing these archetypal teens to play roles in her distorted narrative while trying to reclaim the power that was stripped from her.

The climax introduces a tragic element with the revelation of Genie, Sue Ann's daughter, who has been kept hidden and gaslighted into thinking she is disabled. This twist adds a layer of desperation to Sue Ann’s character, showing that she has been living a lie fueled by her inability to move past her victimization. As she tortures the teenagers—sewing lips shut and branding them in ways that reflect her perception of their social roles—her violence escalates until she is stopped by her own daughter and stabbed by Maggie. Maggie’s final act of defiance, asserting that she is "not like her mother," symbolizes a break in the cycle of trauma, proving the new generation does not have to repeat the sins of their parents.