Rei, Kiki and Ai are three sisters divided by distance and circumstance. Ambitious Rei works in finance in London; Kiki is the single mother of a young son, working in a retirement home in Tokyo; and Ai, the youngest, is a peripatetic Japanese music idol. Having lost both parents, one way or another, the sisters rely on each other as family, far-flung as they are. When Ai is embroiled in a scandal, Rei and Kiki pause their own lives to rescue their baby sister. Over the course of a summer spent in their childhood home on the Japanese coast, the sisters will reunite with their sharp-edged grandmother, care for Kiki’s irrepressible son and silently worry about Ai, all while carefully not talking about the circumstances of their mother’s death 15 years before. But silence between sisters can only last for so long.

Mizuki is a Japanese housewife. She has a hardworking husband, two adorable children and a beautiful Tokyo apartment. It’s everything a woman could want, yet sometimes she wonders whether she would rather throw herself off the high-rise balcony than spend another evening not talking to her husband and hanging up laundry. Then, one rainy night, she meets Kiyoshi, a successful restaurateur. In him, she rediscovers freedom, friendship and the neon, electric pulse of the city she has always loved. But the further she falls into their relationship, the clearer it becomes that she is living two lives --- and in the end, we can choose only one.