Divorced and disillusioned about relationships, Theresa Osborne is jogging when she finds a bottle on the beach. Inside is a letter of love and longing to «Catherine», signed simply «Garrett». Challenged by the mystery and pulled by emotions she doesn't fully understand, Theresa begins a search for this man that will change her life. What happens to her is unexpected, perhaps miraculous — an encounter that embraces all our hopes for finding someone special, for having a love that is timeless and everlasting.