singapore policewoman yu li and her mother went to their hometown hainan to find their separated sister. because of the police's sense of justice, they recognized the chinese policeman mao xianghong. bbb。 although he was unable to find his sister, he also met the movie tycoon ma ritian in hainan. back in singapore, i have had contact with ma ritian many times. mao xianghong stayed in singapore because of the human and snake case, and turned from enemies to sisters with yu li, and even let go of the grudges between the two families and jointly solved the drug transaction case. however, yu li and mao xianghong did not know that a bigger conspiracy was unfolding around them...