Your Worst Nightmare Season 4: Episode Guide & Ratings

College dancer Jodi Sanderholm has spent weeks practicing her team's big performance, so when she vanishes just before the event, it doesn't make sense -- until a friend comes forward with strange details about the days leading up to Jodi's disappearance.

Florida teen Karen Slattery is enjoying a night babysitting her neighbors' children until a violent intruder bursts into the home and vanishes with no trace. With the community on edge, police know they don't have much time before he strikes again.

After a string of bad dates, Texas social worker Deborah Houchin believes she's finally found the man of her dreams. Not long after talk turns to marriage, Deborah disappears, and it will take the help of her coworkers to find out what happened.

Budding New York fashion designer Jenae Aragosa falls hard for bartender Trevor Frederick, but as a dark side of her new man comes to light, Jenae comes to realize she'll be lucky if she makes it out of this relationship alive.

20-year-old single mom Tracy Whitehead is starting to turn her life around when she falls for attentive Joby Palczynzki. As his jealousy starts to overtake their relationship, she soon comes to realize she can run, but she can't hide.

Cousins Ana Franklin and Jennifer Holliday are traveling home late one night when terror strikes. As Jennifer is taken hostage by an unstable man, she soon connects with a 911 operator who will stop at nothing to see that she makes it out alive.

Sisters Bre and Kayli Lasley have just moved into the perfect apartment in downtown Salt Lake City, unaware that a recent parolee is living close by. That is until one quiet night when suddenly their lives cross paths in an explosive way.

With a serial killer on the loose in Arlington, Texas, 22-year-old Adriane Fields can't shake the chilling suspicion that she's next on the list. Crippled by fear, she moves across town, only to come face-to-face with what she feared most.

When trusted legal assistant Gail Spencer fails to show up for work, her coworkers are rightfully concerned. As the sordid details of her abduction come to light, suddenly it seems like someone at the office may know more than they are letting on.

After separating from her husband of thirteen years, 36-year-old Julie Curry Boyd suddenly finds her life in danger. With three kids at home, she'll stop at nothing to keep them safe.