Supernatural's tempestuous midseason premiere will give way to the calm of a monster-of-the-week episode with "Into the Mystic."

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The Winchester boys are running themselves into the ground fighting God's sister, but after Amara's (Emily Swallow) alleged smiting and Sam's fun reunion with Lucifer the brothers may get a break from the Darkness. In fact, episode 11 will be music to their ears.

"Sam and Dean (Jensen Ackles) investigate a case where people are suffering violent deaths after hearing a mysterious song," The CW teased on Friday.

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It certainly sounds like a cut-and-dry hunting trip, but the Lizzie Borden murders also sounded like a typical haunting. Instead, Sam and Dean found themselves up to their eyes in hatchet murders and soulless humans courtesy of a young Amara.

Will the Darkness have a hand in "Into the Mystic," or will Robbie Thompson's episode draw from America's wellspring of urban legends? Find out on Jan. 27.

In the meantime, Supernatural fans have the midseason premiere to look forward to. "Oh Brother, Where Art Thou?" left Sammy in flashback hell, but "Devil in the Details" will give him a chance to escape. At a price, of course.

Supernatural airs Wednesdays at 9 p.m. ET on The CW.