Accused of murdering a child under her care, Irish healer Rachel Dunne flees the ensuing scandal while vowing to never sit at another sickbed. She no longer trusts in her abilities-or God's mercy. But when a cholera epidemic sweeps through London, she feels compelled to nurse the dying daughter of the enigmatic physician she has come to love. James Edmunds, wearied by the deaths of too many patients, has his own doubts about God's grace. Can they each face their darkest fears? Or is it too late to learn that trust and love just might heal their hearts?