You inch down a back alley lined with glowing red lights.

Who knows what’s at the end.

Trolls, maybe. Or unruly youths.

This is it. This is how it ends.

Wait. It actually ends with grappa cocktails and a few laughs. Close one.

Adjust your eyes to Little Trouble, a dimly lit, back-alley cocktail spot from the Victory Sandwich Bar and Paper Plane crew, opening tonight on the Westside. (Have a slideshow.)

It’s so dark. And the neon lights are so parallel. It’s like these guys drank a little gin, watched a little Tron and never let go.

You’ll find the alley beside Steven Alan. Follow those concrete-to-ceiling lights. At the end are two rooms. One with some tables and booths. One with a big three-sided bar. Make a choice. Relax. Choose a libation from the small yet mighty roster.

Going the solo route requires a Form and Dysfunction with gin, aquavit and crème de cacao. If you’re sharing, the King Werewolf with grappa, plum, soda and a great name can serve two to four people.

There’s also food. Asian street things like crab dumplings and pork buns.

Never hurts to get a leg up on brunch.