A fishing community on a remote Maine island finds itself suddenly cut off from the rest of the world after the ferry stops coming. When people start to vanish, the terrified survivors realize that someone - or something - is hunting them.

Inhabitants of a fishing island off the coast of Maine find themselves mysteriously cut off from the outside world after the ferry suddenly stops coming. All the phones have gone dead and every boat sent to the mainland fails to return. When dead bodies turn up along the water's edge, the hardy band of survivors must find out who, or what, is killing them.—Tess Gerritsen