Mary Lennox is born in India to wealthy British parents who never wanted her. When her parents suddenly die, she is sent back to England to live with her uncle. She meets her sickly cousin, and the two children find a wondrous secret garden lost in the grounds of Misselthwaite Manor.
At a writers' retreat on an isolated island, novelist Zandra joins a group of strangers confronting their darkest secrets. But when a member of the party mysteriously disappears, they realize there's something else on the island.