Clever, chaotic TV writer Saoirse; glamorous, stressed-out mother of three Robyn; and dependable, inhibited carer Dara have been a tight-knit group since school. Now in their late 30s, but still as close as ever, these three friends are about to embark on the most thrilling adventure of their lives. When an email arrives, telling them about the death of the estranged fourth member of their childhood gang, a series of eerie events at her wake sets them on a dark, dangerous, and hilarious odyssey through Ireland and beyond as each tries to piece together the truth about the past.