Two women who starred on Married at First Sight UK claim they were sexually assaulted on the show by their husbands, a BBC Panorama investigation claims.
Another MAFS bride has alleged that she was also a victim of sexual misconduct by an on-screen spouse while filming the hit Channel 4 show.
The three women, who have not been named, have raised serious concerns about the welfare and safety of female participants.
The men deny all the allegations against them set to be broadcast in the documentary: The Dark Side of Married at First Sight, which will be shown tonight at 8pm on BBC One.
The Panorama investigation will claim that the makers of the show, where couples marry after meeting for the first time on their wedding day, have left vulnerable participants at risk of harm.
In a statement, Channel 4 said: 'We have not seen the programme and will comment when we know more.'