Dear Tenant (2020)

For the past five years, Lin has been looking after the son (Yo-yu) and the elderly mother (Mrs. Chou) of his deceased boyfriend (Li-wei). They live together like a family, and it is Lin's way of remembering Li-wei: by continuing to be in the life he once had and loving the people he once loved. But when Mrs. Chou passes away, her other son (Li-gang) returns from overseas and discovers that Mrs. Chou's property has been passed down to Yo-yu, whom Lin has legally adopted. Li-gang contacts the police, accusing Lin of killing his mother for attempting to own the property. As the ensuing investigation continues, more and more evidence mounts against Lin.