Shortlisted for the Folio Prize 2015.Shortlisted for the Wellcome Book Prize 2015.Sunday Times Top Choice Summer Read.Elf and Yoli are two smart, loving sisters.Elf is a world-renowned pianist, glamorous, wealthy, happily married: she wants to die.Yoli is divorced, broke, sleeping with the wrong men: she desperately wants to keep her older sister alive.When Elf's latest suicide attempt leaves her hospitalised weeks before her highly anticipated world tour, Yoli is forced to confront the impossible question of whether it is better to let a loved one go. .