In her passport, her profession is stated as engineer.
But the Chinese national was actually working as a guest relations officer in an entertainment outlet in Rasah, Seremban.
When the police raided the place on Wednesday, the woman in her 30s tried to flee by jumping off the second storey of the outlet, the New Straits Times reported.
She did not get far and had to spend more than an hour on an air-conditioner compressor unit after she abandoned her attempt to jump down.
The woman was discovered by a team from the state immigration department and was later rescued by firemen who used a rope from the roof to lower her to safety.
The department had conducted raids on three entertainment outlets in the district, the report said.
Earlier, 13 guest relations officers had tried to hide on the roof before being nabbed by the authorities.
Forty-seven women from China and Vietnam, aged between 18 and 45, were detained for various offences under the Immigration Act.
The director of the state immigration department, Mr Faizal Fazri Othman, said most of them were found to have abused their social visit passes.
They have been sent to a detention depot pending further action, he added.
This article was first published in The New Paper.