Agnes MacDonnell, a strong and self-confident Englishwoman, owns a large estate on an island off the west coast of Ireland. When she begins a passionate but dangerous affair with her new estate manager, Agnes wages a desperate struggle to dominate this charismatic but destructive man.

When yet another anniversary passes without a marriage proposal from her boyfriend, Anna decides to take action. Aware of a Celtic tradition that allows women to pop the question on Feb. 29, she plans to follow her lover to Dublin and ask him to marry her. Fate has other plans, however, and Anna winds up on the other side of the Emerald Isle with handsome, but surly, Declan — an Irishman who may just lead Anna down the road to true love.