When a beautiful blonde girl is found half-drowned on a beach, she has no memory of who she is or what horrors have left her there.
But an article about her in a Brighton newspaper rings alarm bells for beautician Dale, who shows the police photographs of Lotte Wainright. The girls met working on a cruise ship and their friendship blossomed as they sailed the seas of South America, until Lotte fell under the sinister influence of an older American couple. To her regret, Dale hasn't seen Lotte since leaving the ship months earlier ... but the girl on the beach - although badly bruised - is indeed her much missed friend.