Cecilia is in her 40s, and her friends call her Sissy. She is a cheerful and lively seamstress. Her long-term partner, Wai Mun, is the head chef at a popular Chinese eatery. Even though he isn't too happy with life since moving from Hong Kong to Singapore, he and Sissy are a loving couple and have a happy marriage. Their son is 15 years old, and their daughter is nine, and the two of them are really close. Something out of the ordinary happens to disrupt their mundane existence. One day, Sissy notices a bump in her left breast, and it's really firm. She feels a rush of complicated feelings that overwhelm her.