TULSA, Oklahoma - A woman is behind bars after a prostitution bust leads to complaints of human trafficking.

Police said the suspect, Haolin Yang, is the manager of a Tulsa massage parlor, A1 Massage. 

A1 Massage is usually open 7 days a week, but after a CrimeStoppers tip that led to an undercover sting, the doors are closed and the phones aren’t being answered.  

The caller told officers they were offered sexual acts for money during their massage. 

"They declined that and left," said Tulsa Police Officer Jeanne Mackenzie. 

Hours later, an undercover officer showed up. 

The arrest report said the officer paid forty bucks for a half hour massage and he got the same offer.

"While they were in the massage, the masseuse offered them a sexual act for an additional $100," said Mackenzie. 

The employee told police the business manager, Haolin Yang, offered her a job in Oklahoma.

She said once she started working at A1, she was taught how to do sexual massages. 

She also told investigators she lives with Yang and is not allowed to leave by herself, claiming she was forced to work 13-hour days, 7 days a week.

"They very separate, the neighborhood. They don't say hi," said Angela Tran with Nails 4 You. 

Tran is the manager at Nails 4 You, the business right next door to the massage parlor. 

Tran said she's noticed strange behavior at the shop for the few months they were in business. 

"Every time I look outside I am just seeing the male walk in and I'm like, never see any woman," Tran said. 

Tran said she hopes with Yang's arrest, the other businesses in the area can now get back to the healthy environment they are used to having for the customers. 

According to the arrest report, the employee told police she's afraid of Yang, wants help getting away from her, and she will testify against her in court.