When Emily meets the enigmatic and dazzling actress Tamsin, her life changes. Drawn into Tamsin’s world of Soho living, boozy dinners, and cocktails at impossibly expensive bars, Emily’s life shifts from black and white to technicolour and the two women become inseparable. Tamsin is the friend Emily has always longed for; beautiful, fun, intelligent and mysterious and soon Emily is neglecting her previous life – her work assisting vulnerable women, her old friend Lucy – to bask in her glow. But when a bombshell news article about a decades-old sexual assault case breaks, Emily realises that Tamsin has been hiding a secret about her own past. Something that threatens to unravel everything.