该剧讲述了少年李剑星在追查李家灭门案的过程中，与大理寺卿胡正义等一群好友相互质疑到生死与共的探案的冒险之旅。
林兮迟（宋伊人 饰）成长在一个破碎的家庭之中，母亲的缺席让她从很久以前起就对爱情失去了信心。许放（张耀 饰）是林兮迟青梅竹马的玩伴，他目睹着自己的好友一天一天的长大成人，经历着人生中必不可少的心碎和坎坷，虽然心中充满了爱怜，却也无计可施。许放能够做的，只有隐藏起内心里对于林兮迟汹涌的感情，化作沉默但永恒的大海，默默守护在林兮迟的身边。 害怕受到伤害的林兮迟关闭了自己的恋爱神经，虽然许放永远不离不弃的陪伴着她，但是对于她来说，许放永远是哪个人畜无害的大哥哥而已。当有一天，林兮迟忽然意识到许放对自己的感情时，惊慌失措的她能否正视自己的内心呢？
Allegra dreams of being part of the Eleven O'Clock musical theater company and becoming the star of "Freaky Friday", a play that consecrated her grandmother years ago. Grandmother Cocó is a living legend in the world of musical comedy and has a complicated relationship with her daughter Caterina, Allegra's mother. Allegra's life is completely altered when she finds a mysterious bracelet in her home that sends her back to 1994, the year Caterina was her age and took her first steps in Eleven O'Clock while living in the shadow of Cocó, a star. at the peak of his career. By learning about her mother and grandmother's past, Allegra will not only help heal the wounds and bring the family together, but she will also discover that while the past cannot be changed, there is a lot to learn from it.
一次偶然中，杨桔子（李秀东 饰）发现自己的男友袁容（王卫 饰）背着自己和一名叫夏素素（刘真 饰）的女孩交往甚密，愤怒的杨桔子找到了夏素素，才知道，原来她也是受害者之一，真正的感情骗子，竟是袁容。两个同样受到伤害的女孩一拍即合，决定给袁容一点教训。 相似的情感经历让杨桔子和夏素素很快就成为了无话不谈的密友，两人共同建立了“爱情侦探社”，专门为客户解决爱情里的疑难杂症。运用智慧和勇气，女侦探们顺利解决了不少案例，但随着时间的推移，一个又一个的麻烦接连出现在了两人的生活之中，先是侦探社的申报未被批准，之后她们又误打误撞被关进了传染病医院，在重重的困难面前，两个弱女子能够担起半边天吗？
