Mystery writer Annie is persuaded to give a talk to a book club that specializes in mysteries. Then they ask her to join in a mystery game one of their members has invented. Annie doesn't expect the events to take place during a terrible storm that blocks access--and, more importantly, egress--from a lovely but remote old shoreside home. As Annie tries to deal with the strange people in the group--and why are two of them missing?--her friend Brendan desperately makes his way through storm-tossed roads to help her.