Summary of the twist

Lorenzo's day start with a scary phonecall which is actually from his step sister but not his mother. She come to the cellar to find the staff she have before she left. Although Lorenzo try as hard as he can to hide, he is still found by his stepsister. She soon notice that Lorenzo afraid of other people to notice where he is hiding, so she use this to threaten Lorenzo to let her stay in the cellar for one night. Also Lorenzo found out some secret from his stepsister's staff and there's a connection gradually found between he and his stepsister.