Mullingar Gardaí will feature with their experience during the case.
The final episode in a series of true crime stories will focus on women who were brought to Mullingar as victims of human trafficking.
RTÉ's 'The Case I Can't Forget' will end with the case of four Nigerian women who were brought to the town, believing they would be working as nurses, but were instead forced into prostitution.
Traffickers took their personal documents and were made to perform sexual acts in Mullingar and around the country.
The programme will feature testimony from Gardaí who were involved in the case, which led to the first ever conviction for human trafficking in Ireland.
It's set to air this evening on RTÉ One at 9:35pm