One by one

""Danielle Ross's life keeps slipping out of control. First, she must abandon her education to take over her ill father's detective agency. Then, while pursuing a new case, Dani becomes a victim herself. She awakens in a strange place, and is surrounded by eleven other people. Among them are a doctor, a dancer, a German submarine commander, and an ex-convict--all clueless as to why they are there. The culprit relentlessly insists they are all linked by a single sinister secret, and their survival depends on them confessing to it. It's up to Dani to find the link that binds these seeming strangers...."-- Container."
"While taking over her father's detective agency during his illness, Danielle Ross finds herself surrounded by eleven other people, all clueless as to why they are together, in this strange and sinister place."
"While taking over her father's detective agency during his illness, Danielle Ross finds herself surrounded by eleven other people, all clueless as to why they are together, in this strange and sinister place."@en