An interesting concept. The whole neighborhood is suspicious. I liked the characters - the mother and the grandma of the FL. It was funny at times. Although, it's one of those typical stories where "the ML always seems to find the FL when she's in danger and saves her at the right moment.

What bothered me was how the ML remained silent about the dead body in the fridge. Like he thought the fridge was his and took it in. Then, why not inform the police about this? Even after it was confirmed whether the FL was his sister or not (the answer is pretty obvious to the viewers from the beginning given that she was the FL), he should not have cooperated with her.

The murderer. I wanted to know what crimes he committed over the years. What exactly he did do to the father? Why didn't he do anything to the ML? Why weren't there more victims over the years?