Please someone explain the ending to me? SPOILERS
DO NOT READ IF YOU HAVE NOT SEEN THE MOVIE!
Ending:
Cheng finally gets the flat. On the news she hears that there is a global recession which is affecting property markets. The worst is yet to come. In other words I'm assuming proprty prices shoot up as soon as she gets the flat.
Beginning:
Cheng brutally murders a security officer.
Q1: Does the ending imply that she will continue murdering so that the price of the flat reduces?
Q2: I read somewhere that the ending is linked to the beginning but it doesn't add up. If so, what is the connection between getting the flat and murdering the security officer?