IPX-955 The ending was unexpected when the husband installed a camera to watch his wife

The company decides to take on an intern named Yuki, but I'm irritated that he can't work because he's a shadowy figure. Furthermore, he tries to mess with his wife, Airi. Meanwhile, he notices that Airi's appearance changes day by day. I have a bad feeling, but my wife might be having an affair with Yuki … And today, after installing surveillance cameras, I called Yuki to my house and said I had something to do and decided to leave the house …