Janet is in love with her best friend Jack. One morning, Janet wakes up in Jack's bed, unsure of what happened the night before. When it turns out they had sex Janet is at first embarrassed and then excited about the prospects of a relationship. Unfortunately, the same day, Janet learns she has contracted Chlamydia from one of her (many) former partners. Now she must come 'clean' to Jack about her condition, and risk losing him as a friend, and a boyfriend.