First of all, Leonard becomes enamored with the success of a tall handsome researcher who has amazing credentials. Unfortunately, he is a womanizer and has designs on Penny. This leads to Leonard's ten thousandth bout with depression as he realizes he is complicit in it. Meanwhile, there is an episode involving gift giving (it's Christmas time), and Sheldon is faced with reciprocation. But Penny's gift really does a number on him.
Review of The Bath Item Gift Hypothesis
