Gotham: 10 Most Disturbing Episodes

10. 'Look Into My Eyes' (S3 E3)

Season 3's 'Look Into My Eyes' introduces one of Batman's creepiest and lesser known villains, Jervis Tetch, AKA The Mad Hatter.

Deviating from the comic book character's established back story, Gotham's Tetch is looking for his sister, Alice, who we later learn that he raised himself after the death of their parents. It's also heavily implied that Jervis abused Alice.

Shortly after establishing that Tetch has a remarkable knack for hypnotism, he employs Jim Gordon to help him find Alice, who disappeared after Tetch sought help for a condition that made her blood toxic.

Tetch is one of Gotham's most unpleasant villains, and here we see him hypnotise a man, forcing him to kill his wife and then himself simply so Tetch can steal their home.

The implied relationship with - not to mention the control he has over - Alice makes for uncomfortable viewing throughout, and as each detail comes to light, you'll find Tetch more and more repulsive.

There's also a B-story in which Bruce and Alfred take care of 5, Bruce's secretly psychotic doppelganger, and this, combined with Tetch's unsettling nature makes for a disturbing watch.