365Shane
"Lamashtu: Daemonium" takes place a few years before his appearance in "Torchwood: Lincoln City" and sees Lamashtu come from demon and cult leader to something else entirely. This story shows his side of events.
Lamashtu was once a demon who would make living people's lives a living hell, he would do this out of mere amusement however when a plan goes wrong he is left alone in the realm of the living with nothing but his powers and there is no way home for him.