Get ready for Halloween, haunted houses, and devious plans when "Scream Queens" returns with episode 4, Tuesday night at 8:00PM on FOX - find out where to watch a free live stream online to catch a cast featuring Emma Roberts and Lea Michele, joined by guest star Ariana Grande.

According to TVGuide.com, the official synopsis for "Scream Queens" episode 4, titled "Haunted House," reads, "Zayday's stunning announcement triggers a diabolical plan from Chanel; Grace and Pete visit a mysterious woman with a Kappa past; and Hester and Chad grow closer. Meanwhile, Denise continues to search for the Red Devil; and Dean Munsch struggles to keep the university open."

If you can't make it to your TV in time to catch "Scream Queens" episode 4, you can click here, here or here to watch a live free stream online of the episode tonight.

Futoncritic.com's synopsis reads, "As Halloween approaches, Chanel creates a devious plan after Zayday makes a shocking announcement. Meanwhile Grace and Pete pay a visit to a mysterious woman with ties to Kappa's past. Also, Hester grows closer to Chad, Denise continues her search for the red devil killer and Dean Munsch does everything in her power to keep Wallace University open."

Will we get one step closer to finding out who is the Red Devil killer? You'll have to find out when you tune in to the live stream links above or FOX on Tuesday, Oct. 6 to watch episode 4 On Oct. 6.

Meanwhile, check out the sneak peek promo preview video below!