You have 18 months left to live. On a wet Monday in January, Jess Mount receives the devastating news that she hasn’t got long left to live. She doesn’t hear it from a doctor, though. She discovers it when her Facebook timeline skips forward 18 months and family and friends start posting tributes to her, following her death in an accident. As she reads the future posts from her loved ones, who are struggling to come to terms with her loss, Jess tries to piece together the final months of her life. But by the time she realises her death may not have been an accident after all, it might already be too late to prevent it.