17-year-old Luka isn't looking for love. She's trying to piece her life back together after a heartbreaking loss. But when she meets the gorgeous and charismatic Cosmo under a meteor shower at the Greenwich Observatory, it feels like destiny has played a hand. Surely theirs is a love written in the stars.
But Cosmo isn't what he seems, using Luka's love for him to slowly take control of her life. As the pandemic starts to make headlines and lockdown sets in, she is trapped emotionally and physically in a coercive relationship. Luka's friends and brother can see what's happening, but struggle to reach her. Something will have to be sacrificed so Luka can set herself free - but what will be left of her when she does?
Luka's story is told from many points of view: through her letters, and through the voices of her brother, Alec, his boyfriend Theo and Luka's best friend, Roisin. Each of them holds a fragment of the story - it's time to put it all together.