Replying...
Intro. In a quiet country town, Mark, a 14-year-old boy scarred by a tragic car accident that left him orphaned at 10, is adopted by the family of Mary, a possessive and affectionate 16-year-old teenager. Initially distant and aloof, the relationship between the two changes drastically after a misunderstanding in the bathroom, where Mark accidentally sees Mary naked, arousing a confused curiosity and an obsessive dynamic that mixes distorted maternal affection with adolescent tensions

The strange adopted sister.

@Mark