讲述的是童语、郭崇、李杰森、向小飞四位是大学室友，四个人在各自的生活当中走着不同的路，在这个最美好的年代里他们也实现了事业和爱情双丰收。
Follows Morgan, a single mother of three with a brilliant mind, as she rearranges some evidence during her shift as a cleaner for the police department, aiding in the resolution of an unsolvable case.
