Construction consultant LAM KWONG YIU (Wong Tak Bun) has abused the trust of the owners’ corporation and keeps pressuring KAU (Lam Suet), the contractor, for illegal commissions. Despite their long-term collaboration, KAU feels exploited and cannot put up with YIU any longer. Left with no other option, KAU decides to turn himself in to ICAC. Chief Investigator CARRIE (Maggie Siu) soon mounts a full-scale investigation in an attempt to gather evidence against YIU…