Awful Silence (2022) on Netflix

Jenny, a young single mother and her son Harry are fleeing domestic abuse from her violent ex. She desperately needs to rent a house away from anywhere. Morton the estate agent however, has ulterior motives and insists she take the mysterious house but has more than a passing interest in her son. Her friend Elizabeth warns Jenny that her ex is out for blood and she's in danger of losing more than just a roof over her head.