Two years after his wife's sudden, accidental death, Vermont's state prosecutor, Leland Fowler, finds that the stress of raising their small daughter alone has left him with a chronic sore throat. Desperate to rid himself of a malady that has somehow managed to elude conventional medicine; Leland turns to homoeopath Carissa Lake - who cures both his sore throat and the aching loneliness at the root of his symptoms.
Just days after Leland realises he has fallen in love with the first woman who has mattered to him since his wife, one of Carissa's asthma patients falls into an allergy-induced coma. When Carissa comes under investigation, straight-arrow Leland is faced with a moral and ethical dilemma of enormous proportions.