Story of my English teacher (not a joke)

So, I had a lesson with my English teacher and I asked her if she has any true, scarry stories.    She looked like she had some flashbacks but after a while she told me the story 

When she was like 5 or something she lived in England with her parents but she had to move to Poland. Her dad stayed in Great Britain because he had to finish his work. He had a friend who was in a relationship with someone but the friend (I will call her Grace) had someone else. So the paramour was sad that Grace isn’t only with him so he committed suicide. He did it by hanging on My teacher's dad's house. He was so angry at him that he decided to kind of ruin his grave. After a week weird things started to happen. He heard noises from the kitchen (like opening door) but there wasn’t anything. The lights in the garden started to turn on but there wasn’t anything. He felt like there was someone in his house. When he called Grace she told him that similar things happen in her house. 

The craziest thing was when he called his daughter (my teacher). When they were on Skype something crashed his monitor but his child saw everything. There was someone out of the window hanging on a wall behind her dad.

What do you think guys?

(Sorry for my English)