She was caught with her closest friend, who had taken her husband into her home.

A woman who experienced one of people's greatest fears, infidelity, discovered through a hidden camera that her husband was having an affair with her best friend while she was at work.

Footage of the fight between Shauna's ex-friend and her husband received over 9 million views on social media.

Sharing her experience on TikTok, Shauna said, "I installed a camera at home because I had a suspicion. I actually didn't suspect either of them; it never crossed my mind. I thought my husband might be seeing someone else who had previously cheated on me."

"When I looked at the camera footage yesterday, I couldn't believe what I saw. My close friend of four years turned out to be the person I took in because she had nowhere to stay. I didn't mention the camera to either of them. When my husband comes home, I will ask him first, then show him the video."

Shauna called her friend under the pretense of filming a video and asked, "I have a question for you, did you sleep with my husband while I was at work?" Her friend, in shock, replied, "Why would I sleep with your husband?"

When her husband entered the room, Shauna revealed the situation by saying, "I have footage." The incident escalated into a physical fight among the three. Shauna said, "Of course, they denied it, but I didn't get a chance to show the video because a fight broke out. Right now, both of them have been removed from the house."

After the video, which received 9.1 million views and 1.1 million likes, followers commented with advice such as "Never let another woman into your home," and "No matter how much you trust, don't let a third person into your home."

Some followers approached the situation humorously, commenting, "At least you could have had her clean the house and do the dishes before confronting her."