A green, scaly tail. An imposter in her own home. A best friend in grave danger.
Stacy Spencer was looking forward to hosting a memorable start-of-school sleepover at her Florida home. But the arrival of Pearl, the mysterious new girl in town, changes everything. Pearl moves faster than humanly possible, smiles in a creepy way, and seems to be hiding a terrifying secret.
When Stacy and her best friend, Chloe, launch a secret investigation, they quickly find themselves in over their heads. After a confrontation leaves Stacy trapped and her evidence erased, the danger hits far too close to home. Stacy returns to find her house dark and a chilling stranger waiting on the porch. He looks exactly like her dad, but his cold, grey eyes reveal a terrifying truth—he is an imposter.
The nightmare intensifies when Chloe suddenly goes missing. Cut off from her family, Stacy realizes she cannot fight this eerie force alone. She needs the help of her closest friends to decode the clues, expose the imposter, and save Chloe before time runs out.