《虹棉》这部影片的故事设定是在未来的广州。那时，人类的躯体将接入神经元网络并进行智能交互。与之相随，各种新型的犯罪事件也日渐增长。秘密行动小组“代号：虹棉”，专门解决这类事件，维护广州安全。在广州百年老字号莲香楼内，正值茶市之际，古色古香的大厅内人声鼎沸，台上机械名伶正表演经典粤剧名曲，此时，一场突如其来的危险正慢慢逼近。

The story of Rainbow Cotton is set in Guangzhou in the future, where human bodies connect to the neuron network for intelligent interaction. Accompanied by this, various new types of criminal incidents are also increasing day by day. The secret action team "code name: Hongmian" specializes in resolving such incidents and safeguarding Guangzhou's security. In the centuries-old Lianxiang Tower in Guangzhou, when the tea market is in full swing, the ancient hall is full of people, and the famous mechanical actors on the stage are performing classical Cantonese opera songs. At this time, an unexpected danger is slowly approaching.