The Guest (4x60) is an addictive, fast-paced story that centres on the toxic and beguiling relationship between a successful business owner, Fran, and her employee, Ria.　　Ria has never had the time or opportunity to think about what she might actually want from the world. So, when she starts cleaning for Fran, she’s intoxicated by this confident and self-assured woman who encourages her to take control of her life and, when Ria flourishes, an intense friendship is forged.　　However, when Fran’s advice leads to a shocking event, the lives of these two very different women become intertwined by shared secrets and dangerous plots. What follows is a compelling and manipulative game of cat-and-mouse. But just who is playing who?。不过是一群小小的寄生细菌，看起来那些白毛就是如此，可是它们造成的威胁可不低，不过楚翔现在确切的怀疑，在这八号实验室的背后有人在操纵，不然的话为何在他进入标本室后系统会开启将防弹门关闭。……