Yandere neighbour

Yandere neighbour is a 2018 miniseries

Cast
Robbie Amell as Jason Frank - An ex-marine and a successful, attractive lawyer who moves back into his old neighbourhood, only to encounter a person he hasn't seen in 13 years.

Go Ara as Yoko - A japanese girl from Jason's past who is released from a mental asylum after 13 years after she is declared sane, but, secretly, she is still extremely obsessed with Jason, and begins her killing spree again after seeing Jason.