Aneethi (2023) on Netflix

Plot summary

Thirumeni works as a delivery rider for Meal Monkey and lives with his friend Pothi and another roommate, Bhaskar. He has OCD and sees a psychiatrist; he tells his roommates that he has imagined killing people. Later the deliveries lead him to Subbu, a housekeeper who takes his orders through a closed gate; he packs her food in a large container so that she will open it, and he finally sees her. He follows her to the house of Mangayarkarasi, her employer, and watches the older woman scold and beat her. He and Subbu become lovers. Then Mangayarkarasi dies, and the death pulls Thirumeni and Subbu into a police case.