It's all about the creepy stalker ex who keeps holding on to the past in Criminal Minds Season 9 Episode 7, "The Gatekeeper."

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A string of strangulations has brought the BAU team in an investigation where they are after an unsub who keeps mementos of his victims in the form of locks of hair, his killing ropes and headshot photos, something that has the team baffled at the start of the episode.

They later learned that they are after a man who has been stalking his victims, ready when to strike for the kill. What's more, the unsub for Criminal Minds Season 9 Episode 7 seems to be in a mission to fulfill the responsibilities of a parent by eliminating the bad influence in people's lives.

Stalker With A Sad History

The sad thing is that, like with most unsubs in the show, this one is no exception. He has suffered a series of losses that had ultimately led to the big snap in the end.

Imagine having to left your child for 5 minutes to answer a call and coming back to see him dead because of an accident. After that, the marriage spiraled to an end, and you have the off-the-rails unsub ripe for the picking in Criminal Minds Season 9 Episode 7.

His ultimate target? Getting back together with his remarried and now pregnant wife to start a new family.

As what happens in Criminal Minds, the BAU team get there in time to save the wife and the baby from the close clutches of the deranged stalker unsub.

Criminal Minds scoop - a Royal Pains actor will guest star in the 12th episode of Criminal Minds Season 9! Read more here to know who it is.

Sweet Moments Shared By the BAU Team

But Criminal Minds Season 9 Episode 7 is not without its sweet and fun moments, surprising as they may be in a show that's bound to disturb the living daylights out of you.

Dr. Spencer Reid (Matthew Gray Gubler) is the hero of the day as he not only resorts to a witty tactic to apprehend the unsub, but also helps the mother give birth to her baby, giving yet another reason he's the boy genius of the team.

This time, David Rossi (Joe Mantegna) is faced with the closing down of his favorite bar since his marine days, but at least it ends with a very melodic bang as the BAU team spends the last few minutes of the show enjoying each other's company and singing along in the karaoke.

The quintet that takes up the stage for the ending scene include Reid, Derek Morgan (Shemar Moore), Penelop Garcia (Kristen Vangsness), JJ Jareau (AJ Cook), and Rossi.

These fun moments for the BAU team are noticeably becoming a mainstay in every Criminal Minds episode, and it's a welcome affair. Although an interesting thing that's starting to become amiss is that Criminal Minds Season 9 is an AJ episode, but there haven't been a lot of hints about her past.

Esai Morales, the new section chief Matt Cruz, has yet to make another appearance since his debut episode. A lot more can be expected of Criminal Minds Season 9 in terms of character and origin stories, with the anticipated one about Garcia's life before he got into the BAU team.

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