Complex sentence: After Lisa's family awakens to the truth and flees to the light, Lisa stays behind to stop the ongoing deaths and the evil spirit haunting the house with the help of Olivia and the spirits of other girls who were murder victims.
Split into simpler sentences: After Lisa's family awakens to the truth and flees to the light, Lisa stays behind to stop the ongoing deaths and the evil spirit haunting the house. With the help of Olivia and the spirits of other girls who were murder victims.