Set in 1880s London, The Three Husbands of Sarah Tilbury is a dark comedy centered around the eccentric Tilbury family- the dour Sarah, her father Archibald, and her dreamer sister Lily. Archibald, a retired Navy officer, is determined to find a suitable suitor for Sarah, who has been widowed three times under mysterious circumstances. When Captain Covington arrives as a potential match tensions arise as he becomes suspicious of Sarah's past and accuses her of foul play, unraveling the family's dark history.
Amidst accusations and revelations, the Tilbury family navigates their past tragedies with a mix of macabre humor and emotional depth. As secrets come to light and tensions escalate, the bonds between Sarah, Lily, and Archibald are tested, ultimately highlighting themes of family loyalty, grief, and the absurdity of life's tragedies.