Watch: Girl makes boyfriend apologise at knifepoint for flirting on Instagram

Crazy girlfriends are no laughing matter and can be a serious threat to a guy’s life. A chilling video posted online shows a deranged girl holding a knife to her boyfriend’s throat and forcing him to apologise for flirting with another woman on Instagram.

The apparently terrified young man is forced to say sorry on camera in a bid to stop his unhinged girlfriend from cutting his neck with a huge knife. The girl, who is referred to as Riley in the video, is also seen being physically abusive towards her partner by slapping him in the face.

Although the video appears to be genuine on first viewing, there are no concrete reports regarding where it was shot.  

Click on the link below to view the video: