Until recently, the "Me Too" movement had gained little traction in Thailand, a country known for conservative gender roles, but also for its red light districts. That has now changed after one Thai celebrity took offense when government officials urged women to avoid assault by dressing more conservatively. Tony Cheng reports.

The Thai water festival Songkran, a chance to let off steam in the hot weather and relax otherwise strict social norms.

But alcohol, sun and mischievousness often turn into something darker, and this year, the Thai government warned that women should avoid wearing skimpy clothing. That advice outraged Cindy Bishop, a well-known model and actress.

CINDY BISHOP ACTRESS "As a victim of sexual harassment during Songkran, I thought that was quite unfair, that that's the only thing you're going to talk about to reduce the problem."

She took to social media, using platforms like Instagram and Facebook to launch the hashtag 'donttellmehowtodress'.

CINDY BISHOP ACTRESS "Because nobody really talks about this, it's easy to say 'women protect yourselves'. Well, I don't think that should be the case anymore."

The response was huge, creating even more of a buzz in Thailand than the 'metoo' campaign. And what started as a personal protest, has become a movement. This exhibition was launched to make something physical out of the online campaign. Encased in glass, the clothes that victims of harassment wore when they were assaulted. Some are disturbingly vivid. The exhibition also includes clips from Thai celebrities discussing issues raised by the campaign.

ANANDA EVERINGHAM ACTOR "We are civilized human beings. We're not animals. It's crazy."

ANIPORN CHALOEMBURANAWONG MODEL "We don't dress the way we do to get men's attention. Take me for example, I dress the way I do because I'm confident."

But confidence is one thing that many people fighting harassment don't have, especially in a society obsessed with 'looks'.

TONY CHENG BANGKOK "One of the problems facing ppl fighting sexual harassment with the metoo campaign is that they face attitudes, deeply entrenched in society, particularly in education, the media and fashion."

And the United Nations has found that regionally, Justice is hard to find when the process is dominated by men.

MELISSA ALVARADO UN WOMEN "Women are held back from seeking justice because of biases about women's sexuality about women's responsibility, there's a lot of responsibility placed on women for violence that happens to them when we should be looking at the perpetrators."

It might seem like a mixed message in a country famous for its red light districts, but the objective is very clear. Wherever you are, whatever your state of mind, harassment is never acceptable. Tony Cheng CGTN Bangkok.