Demon/Death's Bride

Tamika is a normal 20 year old girl looking after her 5 year old sister. Their parents died in a car crash a year ago. Tamika was her little sister's legal guardian and they live with their grandparents in Adelaide. But what happens when a mysterious stranger comes to town. And he claims she is his bride? Also that he is the demon of death? What will happen to Tamika and her sister? Will they be separated or taken to an other world together? What about their grandparents?