k,
i watched it sometimes ago on dvd.
its kinda adult movie,
the plot as i little remember was-
a man first get a girl , even prostitutes then after sex , kill her.
for investigation a lady officer fake a relationship with him , and she fall in true love with him and stop thinking him a s a criminal. one another male officer is killed by the killer during a chase.
at last it was revealed that who was the killer.
i can remember this movie name. it has lot of sex scenein it.

i suppose it was something like-deadly sex , bt i m not sure.
help me .
thnks in advance.