Every Friday without fail, the lilac bus transports the same seven people from the bustle of Dublin to spend the weekend in the quaint village of Rathdoon. Each passenger has their own reason for making the trip. What is Judy hiding? Why is Rupert so unwilling to return home? And why has driver Tom orchestrated the lilac bus's trip in the first place? As friendships are forged and secrets revealed, it soon becomes clear that there's more to these unsuspecting characters than meets the eye . . .