The lead is a young, handsome Boston lad, near the turn of the century, descended from proper Bostonians and Irish aristocracy. Spurred on by his Irish grandmother, Lady Susannah, Peter Bradford sets off to Ireland to be viewed by his childless uncle, the seventh Earl of Cloneen. While travelling the Irish Mail, Peter shares a compartment with a mysterious young beauty who obviously sports a fascinating history but isn't telling. There's plenty for everyone to tell that next night, however, after Peter and the Lady (Anne) celebrate a tumultous nuit d'amour on an overnight ferry. Off into the morning light goes Anne, carrying unbeknownst to her, a future bit of Boston within.