An agreement between two friends, made on a drunken night a decade ago, comes back to haunt one of them.

Amelia Mason is happily single, living a quiet life with her island bookstore.

When an old friend Kirk Ferron comes to the island and reminds her of a pact they made when they were younger,

Amelia initially laughs it off until Kirk makes it clear he is deadly serious about their agreement to marry when they both reach thirty if they're both single.

He threatens her with a lawsuit if she doesn't marry him,

but her best friend Silas offers a solution which surprises everyone and Amelia begins to realize everything she ever looked for was right in front of her.

Unfortunately, Kirk is a jealous psychopath and he vows revenge – revenge which could tear the happy couple apart forever...