Patrick Davenant invites a group of friends to visit a theater inside his villa, a place which later reveals itself as sinister. Within a short time, the guests realize that they are trapped in the villa. A merciless killer then begins to murder them one by one.《杀手预订九座》是Giuseppe Bennati于1974 年在其它 导演，由Rosanna Schiaffino,Chris Avram,Eva Czemerys,Lucretia Love,Paola Senatore等出演,剧中使用其它对白,是一部恐怖片电影。