乐莹（贾玲 饰）宅家多年，无所事事。大学毕业工作了一段时间后，乐莹选择脱离社会，封闭社交圈层，这是她认为与自己“和解”的最好方式。一日，在命运的几番“捉弄”下，她决定要换一种方式生活。在与外面的世界小心翼翼的接触中，乐莹结识了拳击教练昊坤（雷佳音 饰）。当她以为生活即将步入正轨时，接踵而至的考验却远超她的想象，滚烫的人生才刚刚开始……
本片改编自电影《百元之恋》。

Billy "The Great" Hope, the reigning junior middleweight boxing champion, has an impressive career, a loving wife and daughter, and a lavish lifestyle. However, when tragedy strikes, Billy hits rock bottom, losing his family, his house and his manager. He soon finds an unlikely savior in Tick Willis, a former fighter who trains the city's toughest amateur boxers. With his future on the line, Hope fights to reclaim the trust of those he loves the most.