If you don't know how to write a plot, there is no shame to ask how. First act is good, seconded with 50/50, third act is out. You don't have to make a Shakespearian plot without a proper incident accident or dealing with audiences as they are not intelligent. Actually the whole plot could be revealed so quickly if his friend told him the truth, and from then you can build whatever you want. But i think the writers had a fixed idea and they insisted to make every character and the whole drama to serve even if it's not making sense. The making itself could be way much better if he knew what he was writing in first place.
Review of Sleeping Dogs
