A cop falls in love with a karaoke singer, while her violent, and psychotic gangster-boyfriend, known as Prince, is away on business.

young police of Achon partners old and poor bone Ada bar license checks , the encounter bar PR Tweety . The male drunk to go home to wake up the next day , they discovered that the loss of the pistols , that discuss reached , Young and Dangerous take the road to find Tsim Sha Tsui East , they discovered Chui sell guns , they track her . Suddenly heard gunfire, picked up a male mistake the buttstock Tsui shot the original parking dumb Aberdeen , male known to blame the wrong Tweety , but eager to get back warheads . Original Tsui has warheads Toda return of the male , is the night the male to Chui apology , but also to start a Famous . Tsui 's old boyfriend, Prince Edward is a ruthless criminals , suddenly back away Chui , fear , Prince hung constitute dangerous then pretend to promise , surprise, male and too a touch behind in Kara OK , the Prince was rounded up with the police started shooting , chaos Chui broke down the Prince's rescue male . The the Prince know Chui love male , actually at the last minute , to give up the departure plan Retrieve male . Police outside the Prince's up to the threat Xiong, to Chui front shot settled Chui could not bear to see the male sacrifice for their own Prince snatched the gun threatening suicide , three commenced confrontation , Prince does not wish Chui injured , three in both love and hate relationship , I do not know how to deal with ...