Serial killer

Sir, we're tracking a serial killer.

Sir, we're tracking a serial killer.

— Brooklyn Nine-Nine S3E4

How's your serial killer?

How's your serial killer?

— Grey's Anatomy S5E13

I would just like to point out that most serial killers are high-functioning members of society who lead a double life.

I would just like to point out that most serial killers are high-functioning members of society who lead a double life.

— Gossip Girl S6E1

and hopefully you don't raise a serial killer.

and hopefully you don't raise a serial killer.

— Modern Family S2E10

Otherwise, you're a serial killer, which would explain a lot.

Otherwise, you're a serial killer, which would explain a lot.

— New Girl S2E3

That looks like something you would find on the wall of a serial killer.

That looks like something you would find on the wall of a serial killer.

— Parks and Recreation S2E7

And if they are, is this the work of a serial killer?

And if they are, is this the work of a serial killer?

— Sherlock S1E1

Wait, you're not serial killers?

Wait, you're not serial killers?

— Supernatural S1E8