The film is based on the Founder of Causeway Bay Books - LAM Wing-kee’s experience after he was temporarily released back to Hong Kong after 8 months of detention in Mainland China. LAM was demanded by the authorities to retrieve his computer in the bookstore in Hong Kong, alongside with the information of his customers. Only when he found out that his colleague handed over to him the wrong computer, should he start to think about possibilities besides submitting to authorities from Mainland China. The film re-enacts the events happened in the two days he was allowed to return to Hong Kong and explores LAM’s decision to defy, and refuse to leave his homeland.