Ten year old Mary O'Hara is devastated when her grandmother, Emer, is admitted to hospital. She visits her regularly and it is after one such visit that she meets Tansey, a new neighbour. Tansey is friendly & talkative and Mary is enthralled, especially when she says she has an urgent message for Mary's granny...
When Mary's mother hears that her daughter has made a new friend she is curious to meet this young woman who has the same distinctive name as her own grandmother. Slowly, pieces of the jigsaw fit together and they realise with shock that Tansey is in fact...a (very friendly) ghost!
Brought together in the most surreal of situations, Mary and her mother, along with Tansey, head to the hospital to collect Emer. From there, four generations of women head off on one last glorious, spectacular road trip together. Conversation flows as they take a trip down memory lane, preparing themselves for final goodbyes but warm in the knowledge that life is most definitely amazing, quite often truly mysterious and - if you're lucky - full of love.