What Was Happening Behind the Doors of a Westland Massage Business?

A human trafficking investigation has put a Westland business at the center of a disturbing Metro Detroit case. What did investigators find and what should Westland residents know?

WESTLAND, MI From the outside, it may have looked like another massage business.

But according to investigators, what was happening behind the doors was anything but ordinary.

A Metro Detroit couple accused of operating a human trafficking enterprise through massage parlors has now been bound over for trial, and Westland is part of the story.

Paul Richard Katterman II, 57, and Zixuan Wan, 44, are accused of operating massage businesses in Westland, Farmington Hills and Commerce Township.

According to ClickOnDetroit, the couple allegedly forced women to live and work inside the massage parlors under harsh conditions, working from 9 a.m. to 10 p.m., seven days a week, and allegedly forcing them into sex work. The couple has been charged with multiple offenses, including human trafficking, keeping a house of prostitution and conducting a criminal enterprise.

Those are allegations.

But the connection to Westland is not simply speculation.

Westland was part of the investigation

According to the Farmington Hills Police Department, a four-month investigation led by its Directed Patrol Unit involved the Westland Police Department Special Investigations Unit and the Oakland County Sheriff's Office Special Investigations Unit.

On March 5, 2025, search warrants were executed at massage businesses in Westland, Farmington Hills and Commerce Township, as well as at Wan's Livonia residence and financial institutions investigators believed were connected to the alleged operation.

Investigators ultimately identified four women who authorities said were being forced to live and work at the massage businesses.

According to prosecutors, the women were immigrants from China who allegedly did not speak English and were allegedly working extremely long hours with little or no pay. Authorities said they lacked access to transportation, medical care, friends and family.

The investigation also raised concerns about both human trafficking and labor trafficking, according to Oakland County Prosecutor Karen McDonald.

And that leaves Westland residents with a difficult question.

How could this happen here?

That is not an accusation against the City of Westland, the Westland Police Department or every massage business operating in the city.

In fact, Westland police were part of the investigation.

But if investigators say one of the businesses connected to the alleged operation was operating in Westland, residents have every right to ask what happened before the search warrant was served.

How long had the business been operating?

How was it licensed?

Had residents or neighboring businesses raised concerns?

Were there previous complaints?

Did anyone in the city notice signs that something wasn't right?

And perhaps the most uncomfortable question:

What was happening behind those doors?

According to authorities, the investigation began in November 2024 after investigators in Farmington Hills became aware of an unlicensed massage business allegedly offering illicit services. The investigation then expanded to other locations, including Westland.

That detail is important.

Because human trafficking doesn't necessarily look like the crime people imagine.

A business can have a sign.

It can have a phone number.

It can appear to be operating like any other business.

And according to Oakland County officials, that was part of what made this case so disturbing.

“These are establishments that are considered legitimate by your everyday person,” Oakland County Prosecutor Karen McDonald said when the charges were announced in 2025.

Now the case is moving forward

The latest development came August 15, when ClickOnDetroit reported that Katterman and Wan were bound over to circuit court.

According to the report, Katterman faces two counts of human trafficking, keeping a house of prostitution, conducting a criminal enterprise and failure to file taxes.

Wan faces two counts of human trafficking, keeping a house of prostitution, second-degree money laundering, conducting a criminal enterprise and failure to file taxes.

They are scheduled to be arraigned in circuit court on August 27, 2026.

Being bound over does not mean the defendants have been found guilty. They remain accused, and the allegations will ultimately have to be proven in court.

But the Westland connection deserves attention.

Voice of Westland is asking

We know investigators searched a massage business in Westland.

We know Westland police participated in the investigation.

We know prosecutors say women were allegedly being exploited across multiple locations, including Westland.

What we don't yet know is what happened inside the Westland location and how long it had been happening.

That's something residents deserve answers about.

Voice of Westland plans to look deeper.

Were there complaints?

Were there previous inspections?

Was the business properly licensed?

Were there zoning or code-enforcement issues?

When did the city first become aware of the business?

And were there warning signs before investigators arrived with search warrants?

The question isn't whether every massage business should be viewed with suspicion. They shouldn't.

The question is much simpler:

When something this serious is allegedly happening in a Westland business, how do we make sure the warning signs aren't missed?

Voice of Westland will be asking.

Editor's note: The individuals named in this story have been accused of serious crimes but have not been convicted. All defendants are presumed innocent unless and until proven guilty in court.