Early Morning Riser by Katherine Heiny is a novel that is both bittersweet and laugh-out-loud funny, offering an astute examination of love, disaster, and unconventional family dynamics. Jane, a woman who easily falls for Duncan's charm and good looks, finds herself in a dilemma as she realizes that Duncan has been romantically involved with nearly every woman in Boyne City, Michigan.

Jane encounters Duncan's exes everywhere - from the local eateries to the grocery store, and even in neighboring towns. Her relationship with Duncan becomes further complicated by the continuous presence of his ex-wife Aggie, who retains Duncan's services to mow her lawn. Likewise, Duncan's coworker, Jimmy, has a habit of dropping by at inopportune moments.

As Jane grapples with the realities of a relationship that seems to include more than just two people, a tragic car crash alters her perspective on love and marriage. Suddenly, Jane's life is irrevocably intertwined with Duncan's, Aggie's, and Jimmy's. Despite knowing she can never have Duncan all to herself, Jane begins to wonder if a different form of happiness is within her reach - one that transcends traditional notions of romance.

Early Morning Riser showcases Katherine Heiny's remarkable ability to weave humor and heartache into a narrative that resonates with readers, making it her most astonishingly wonderful work to date.