两年前，乡村度假村企业家大吉（郑民俊饰）因为看中了财富而与保险大亨宋夫人（李柳玲饰）再婚。然而，由于逐渐垮掉的度假村事业和对自己不予认同的大吉的儿子成浩（金英植饰），他们的婚姻并不平稳。更糟糕的是，备受压迫的宋夫人为了摆脱每月逼迫她达成保险销售目标的生活，策划了与她的年轻男性情人共同的阴谋，为了追求自由和新生活的突破。随后，她针对再婚丈夫大吉和他的儿子成浩展开了危险的诱饵.....

《禁忌：新的姐姐》这部电影讲述了一段家庭内部的复杂关系和禁忌的爱情故事。故事中，宋夫人的到来打破了原本平静的家庭，引发了一系列令人震惊和扭曲的事件。她为了逃离束缚和追求自己的欲望，不惜使用阴谋和诱饵，试图改变自己和家人的命运。

这部电影通过展现人性的复杂性和欲望的力量，引发观众对道德和家庭关系的深思。它揭示了一个人在追求个人利益和自由时可能产生的负面影响，以及这种冲突可能导致的破坏和痛苦。

《禁忌：新的姐姐》传达了一个重要的信息：在追求欲望时，我们应该思考其带来的后果和道德的约束。家庭和人际关系是我们生活中重要的支撑，我们需要慎重地处理和维护这些关系，以避免伤害和后悔。

这部电影以其引人入胜的情节和复杂的人物关系，引发了观众对人性和道德困境的思考。它展现了人性的黑暗面和欲望的力量，同时也唤起了对家庭和爱的珍视和反思。

Two years ago, rural resort entrepreneur Dae-gil (Jung Min-joon) remarried insurance tycoon Mrs. Song (Li Liuling) because of his fancy fortune. However, their marriage is not stable due to the gradually collapsing resort business and Dae-gil's son Sung-ho (Kim Young-sik) who does not approve of him. To make matters worse, the downtrodden Mrs. Song hatches a conspiracy with her young male lover in order to escape the monthly life that forces her to meet her insurance sales goals, in pursuit of freedom and a breakthrough in a new life. She then launches a dangerous bait for her remarried husband Dae-gil and his son Sung-ho..

"Taboo: New "My Sister" is a film about a complex relationship and a forbidden love story within a family. In the story, Mrs. Song's arrival broke the originally peaceful family and triggered a series of shocking and twisted events. In order to escape from bondage and pursue her own desires, she does not hesitate to use conspiracy and bait, trying to change the fate of herself and her family.

By showing the complexity of human nature and the power of desire, this film arouses the audience's deep thinking on morality and family relationship. It reveals the negative consequences that can arise when a person pursues personal gain and freedom, and the destruction and suffering that such conflict can cause.

"Taboo: The New Sister" conveys an important message: when pursuing desire, we should think about its consequences and moral constraints. Family and relationships are important supports in our lives, and we need to handle and maintain these relationships carefully to avoid hurt and regret.

With its fascinating plot and complex character relationships, the film arouses the audience's thinking about human nature and moral dilemmas. It reveals the dark side of human nature and the power of desire, while also evoking the cherishment and reflection of family and love.