What determines the course of our lives? Chance . . . or destiny?

On Midsummer's Day, 1982, three-year-old Azalea Ives is found alone at a seaside fairground.

One year later, her mother's body washes up on a beach—her link to Azalea unnoticed.

On Midsummer's Day, 1992, her adoptive parents are killed in a Ugandan rebel uprising; Azalea is narrowly rescued by a figure from her past.

Terrified that she, too, will meet her fate on Midsummer's Day, Azalea approaches Thomas Post, an expert in debunking coincidences. Azalea's past, he insists, is random—but as Midsummer's Day approaches, he worries that she may bring fate upon herself.