Suspense genre. I don't remember the plot that well.

So the story starts with the fmc going to this mansion as one of the maids. And the reason she goes there is to find out how her mother who also worked in the same place mysteriously died/ killed herself. And she gets these creepy doll house kind of gift boxes sent to her about death.And she falls in love with the young owner of the house. And ends up getting to know him and his father are psychotic killers and she escapes them.