Senior business consultant Wai Yat-Sing cannot get over the fact that he has disappeared for ten years, so he decides to go to Vietnam to probe into the matter, accompanied by his wife Yuen Kiu and good friend Lam Ho-Yan. However, the local police keep obstructing their investigation, and they end up in dangerous situations.

• Roger Kwok
• Joey Man Yee-Man
• Vincent Wong
• Alice Fung So-Po
• Kenny Wong Tak-Ban
• Rebecca Zhu
• Zoie Tam
• Stephanie Ho