Celeste knows she should be excited to spend two weeks at her grandparents' lake house with her brother, Owen, and their cousins Capri and Daisy, but she's not.
Bugs, bad cell reception, and the dark waters of the lake... no thanks. On top of that, she just failed her swim test and hates being in the water - it's terrifying. But her grandparents are strong believers in their family knowing how to swim, especially having grown up during a time of segregation at public pools. Without the opportunity to learn, Grandma's sister drowned when they were kids.
But soon strange things start happening, like Celeste's cousins accusing her of waking them up in the middle of the night. But Celeste hasn't been awake during the night - she knows she's been fast asleep because she's been having terrible nightmares about drowning!
Things at the old house only get spookier until one evening when Celeste looks in the steamy mirror after a shower and sees her face, but twisted, different... Who is the girl in the mirror? And what does she want?
