I remember that Ouyang Xiu played a TV series called Vanguard Against Pornography, and the plot in it was similar to what the landlord said. There used to be a modeling company that trained models and then made them engage in prostitution, but it was later uncovered by the police. I don't know if it is what the landlord is looking for.

Plot introduction

After 1997 was told in "Vanguard Against Pornography", the Hong Kong police stepped up their anti-pornography efforts, resolutely banned all kinds of illegal pornographic transactions, and made efforts to return Hong Kong to a pure land. Inspector Jiang of the Anti-vice Unit led a group of "anti-vice pioneers" to attack everywhere, save third-rate porn stars, smash transactions, arrest romantic tycoons, protect virtuous women ... and spare no effort to maintain the image of Hong Kong. The play involves almost all typical cases that may be encountered in the process of eliminating pornography, and also exposes the underworld behind these cases.