Incest between siblings: Brother and sister agree to only have sex at home on weekends when parents are not around.

The film depicts a pair of biological siblings who develop a taboo incestuous relationship within the family environment. They agree to engage in intimate sexual activities only on weekends when their parents are away from home. Through these secret weekend rendezvous, the story explores the emotional entanglements, desires, conflicts, and moral struggles between the siblings. Over time, this clandestine relationship evolves into deeper attachment and crisis, delving into the psychological boundaries and consequences of familial taboos. The entire film employs a realist approach to portray this sensitive theme, focusing on the characters' inner contradictions and passions.