A visit to the photographer’s returns the physical looks of a 70-year-old grandmother back to her 20s. Things get even stranger when his grandson asks her to join his band, and his best friend begins to fall for her.

"The Song of Cotton" based on the America's National Book Award and the PEN/Hemingway Award winner China-born author Ha Jin's novel "A Pension Plan". The young woman Mianhua ("Cotton") gets a job that she has no past experience of: a full-time caretaker. Her client is an old stubborn boxer who suffers from Alzheimer's disease with a son (with his later wife) living overseas taking no care of him, and a daughter with his ex-wife who hires Mianhua. Yet the daughter distrusts and despises all nannies for "knows only lying, abusing, and taking advantages"; so is her attitude towards Mianhua. Under the same roof, however, the old man and Mianhua start to develop a trusty and warm relationship over time where he even starts to mistake Mianhua as his ex-wife whom he owed a love debt to. All of a sudden, Mianhua finds out that she got pregnant...