在古代燕璃国，有一对双胞胎姐妹柳静姝和柳嘉。因双生子被认为是不祥之兆，柳将军为了保护妹妹柳嘉，将她送到了边疆军营中生活。随着时间的流逝，柳嘉在边疆长大，她变得豪爽坦荡，武艺高强，心地善良而直爽。而柳静姝则在柳府中温馨成长，她天真浪漫，温柔纯真

然而，平静的姐妹生活却被一场意外打破。国王下旨将柳静姝嫁给宣平侯府的长子萧任衍。然而，就在大婚前夕，柳静姝却突然失踪了。面对这一突发状况，柳嘉决定冒险扮演姐姐的角色，替姐出嫁，并寻找失踪的真相。

柳嘉深知自己扮演替嫁新娘的风险，但她为了保护姐姐的名誉和家族的尊严，义无反顾地踏上了这条充满未知的道路。在宣平侯府，她必须面对陌生的家人和复杂的政治斗争。她努力展现出柳静姝的品质和温柔，同时也用自己的聪明才智和勇气解决各种困难和危机。

在这个过程中，柳嘉逐渐发现了姐姐失踪背后的真相，并渐渐接近了真凶。她结识了宣平侯府中的朋友和敌人，建立了深厚的人际关系。她用自己的坚强和智慧为自己和家族争取了尊严和正义。

《替嫁新娘》是一部充满悬疑、情感和勇气的电影。通过柳嘉的故事，观众将深入探索姐妹之间的羁绊、家族的荣誉和爱的力量。影片展现了古代社会的残酷和不公，同时也揭示了人性中的善良和勇敢。

In the ancient Yanli Kingdom, there was a pair of twin sisters Liu Jingshu and Liu Jia. Because twins are considered a bad omen, General Liu sent her to live in a frontier military camp in order to protect his younger sister Liu Jia. As time passed, Liu Jia grew up in the frontier, and she became bold and open, with high martial arts skills, kind-hearted and straightforward. And Liu Jingshu grew up warmly in Liu's house, she is innocent, romantic, gentle and pure

However, the peaceful sisters' life was broken by an accident. The king decreed to marry Liu Jingshu to Xiao Renyan, the eldest son of Xuanping Houfu. However, just before the wedding, Liu Jingshu suddenly disappeared. Faced with this unexpected situation, Liu Jia decided to take the risk of playing the role of her sister, marrying her, and looking for the truth about her disappearance.

Liu Jia was well aware of the risks of playing a surrogate bride, but in order to protect her sister's reputation and the dignity of the family, she embarked on this journey without hesitation. This road is full of unknowns. In the Xuanpinghou Mansion, she had to face a strange family and complicated political struggles. She tried her best to show Liu Jingshu's character and gentleness, and at the same time used her ingenuity and courage to solve various difficulties and crises.

During this process, Liu Jia gradually discovered the truth behind her sister's disappearance, and gradually approached the real culprit. She got acquainted with friends and enemies in Xuanpinghou's mansion, and established a deep interpersonal relationship. She fought for dignity and justice for herself and her family with her strength and wisdom.

"The Substitute Bride" is a film of suspense, emotion and courage. Through Liu Jia's story, audiences will delve into the bond between sisters, family honor and the power of love. The film shows the cruelty and injustice of ancient society, but also reveals the kindness and bravery in human nature.