Somewhere in the USA: A girl goes and visits their new neighbor crush's house to invite them to her house for Christmas eve but something strange happened which result makes her life upside down. Somewhere in Britain: There is a two competing serial killer who is roommates but doesn't know the other is killer. What will happen when one-day police found a dead body not far from the house they share, they begin to suspect one another. Somewhere in London: A person who witnessed something and doesn't remember their past- and doesn't want to. -: -: Three different stories and three different places. What happens when the string of these three stories joins together? What will be the consequence happen?