When Julie moves across the country with her son Matty after her husband's tragic accident, she hopes to start a new life and find solace in her husband's sister, Alison. However, what Julie doesn't know is that Alison blames her for her brother's death and holds a deep resentment towards her. Alison's obsession with Matty becomes increasingly apparent, and she becomes determined to isolate him from his mother and create a new life for them alone.
As Julie begins to uncover Alison's true intentions, she realizes that she is in grave danger and that Alison will stop at nothing to get what she wants. Julie must fight to protect her son and unravel the web of lies and deception that Alison has woven around them.
As tensions rise and secrets are revealed, Julie finds herself in a race against time to save herself and her son from Alison's twisted plot. The explosive climax of Kill Thy Neighbor will keep audiences on the edge of their seats until the very end.