Tactical Unit: Human Nature (2009)

The third of five TV Movies set after Johnnie To's PTU (2003) is mostly Tong's story. His gambling debts are out of control and his decision to go to a loan shark was a bad one; he's now in over his head, suffocating from the need to get cash quick or lose the last shred of his dignity. The rest of the team have their own problems with gang dealings happening in scattered locations across the city. The two things eventually find a common ground.
The scenes between Tong and Sam are few but still the best, most powerful sections of the instalment, where the differences between suspecting the truth and actually knowing it are measured in honourable actions.

3 mathematics questions out of 5