文件速郵遞員 Tempo 與好朋友大隻賓, 肥佬祥及抽水強於某天晚上在酒廊兼職兼夾 band 時巧遇阿 May, 五人十分投契, Tempo 跟阿 May 更亙生情愫. 另一方面, 日本地產公司為了阻止阿 May 於限期前能簽字繼承職權, 遂派人到香港來將她軟禁. 一場用愛心拯救伊人的行動即將開始.

Naomi, a corporate heiress from Japan, vacations to Hong Kong with her two colleagues. Bored, she sneaks out to visit the city and befriends a local rock band and, appreciative of the company, later helps the members with their debit issues. Meanwhile, Naomi's colleagues received news that the big boss of their company succumbed to a heart attack and that Naomi must sign a document to prevent the company from being turned over to a corrupt executive. The colleagues try to locate Naomi, just as a relationship develops between her and the band leader.