Franco (played by Lawrence Ng) and Michelle (played by Rosamund Kwan) are a loving couple who plan a vacation to Europe together. However, a misunderstanding makes Franco think Michelle is cheating on him. Angry, he heads alone to London to confide in his friend Cheung Chi-Keung (played by Ray Lui). Meanwhile, Michelle goes to Paris alone to clear her head. In the end, Franco realizes he misunderstood his wife and rushes to Paris to make amends, only to run into his childhood playmate Nina (played by Nina Li). Nina is now involved with gangster boss Mr. Ma, who mistakes Franco and Cheung Chi-Keung for her lovers and goes after them, which deepens Michelle's misunderstanding of Franco. Unbeknownst to them, the anti-drug Interpol is watching all of Mr. Ma's moves.
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