An intelligent woman named Mo Yan aspires to become a thief but somehow ends up as a constable at Kaifeng Manor. There, she meets the chivalrous and tender swordsman Zhan Zhao. This quarrelsome couple will join forces to unravel some rather heinous schemes.

欢乐颂小区新搬来的五个女生住在同一层，其中酒店经理朱喆和刚工作没几年的余初晖、何悯鸿合租一套房神秘冷艳的公司人事方芷衡和从事生命科学研究工作的叶蓁蓁分别住在另外两套房，这五个女人性格迥异，生活境遇也不同，各自面临着来自职场、家庭、爱情的问题和不如意。方芷衡因行迹可疑，引得众人猜疑；天之骄女一样的叶蓁蓁也会遇到来自职场上…