Charity is a fairy godmother who grants the wishes and deepest desires of her fellow students at Jack London High School. But when she fulfills a wish that ends in utter disaster, she begins to question all the wishes she's ever granted. Then Noah, who blames Charity for sabotaging his prom plans, demands she quit granting wishes and help him reconnect with his ex.

On a tiny Irish island, a wedding occurs. It's a fancy wedding fit for the semi-famous couple, but soon all of the plans begin to fall apart. Old resentments rise amidst what should be happy new memories. And when someone turns up dead, the entire wedding party can't help but wonder: what went wrong? And, was it murder? If so, who did it? And are they after someone else, next?