This seems like your run-of-the-mill small group in an isolated location being picked off by someone or something unknown, until you take a closer look. There are 10 members in the group, the leader's first name is Agatha, and she feigns death so she and the 'lone' survivor can defeat the killer. Those details make this flick is an homage to Agatha Christie's Ten Little Indians. Also, the leader's last name is Doyle which may or may not refer to Sir Arthur Conan Doyle, creator of Sherlock Holmes.