Tragedy has struck the Harrigans: Quincy's beloved sister-in-law Loni is gravely ill and nearing death. Quincy, like his brothers, feels helpless to save her, and the clock is ticking. Then, with perfect timing, a winsome red-haired woman named Ceara O'Ceallaigh mysteriously appears on Quincy's property and insists that Loni can be cured. Only Quincy, she says, as the sole remaining Harrigan bachelor, can make it happen - by marrying Ceara…