He was living in a beautiful mansion with his wife and children. One fine day, he encounters unexpected things happening in his life, leading to unchangeable events that turn his life upside down.

Who is he?

What are the unchangeable events that happened in his life?

Does that really happen, or it's just a...?

Who is that stranger he invited into the mansion?

Who is that man in the dark night?

What happens to his life in the end?