University physicists Leonard and Sheldon know whether to use an integral or a differential to solve the area under a curve. But they don't have a clue about girls. Or dating. Or clothes. Or parties. Or having fun. Or, basically, life. So when a pretty blonde named Penny moves in the apartment across the hall, the guys decide to get an education outside of the classroom. Boys, you have a lot to learn.

犯罪心理第九季讲述的是故事发生在三个月之后,Morgan(去伦敦执行奥运会安保任务)和Garcia(帮助Prentiss搬入新家)从英国归来,发现身边多了一个人——长期在联邦调查局工作的语言学专家Alex Blake正式加入BAU调查组.Alex天不怕地不怕,曾因为和Strauss的矛盾而闹得满城风云.Garcia对这个新来的女人并不看好,但Alex高超的技艺最终让她转变了观念.这是好事情——BAU调查组必须明白「团结才是力量」的道理,否则他们无法面对本季的新威胁.在首集结尾观众会看到,某个反派角色不仅一直在嘲弄他们,骚扰他们,甚至在追猎他们.直到本季的季终集,BAU调查组才有机会与这个狡猾凶悍的对手展开正面对决。