|“|| "I could've killed you!" |
"Not you. The fox inside you!"
Strange Frequencies is the seventh episode of Season 5 and the sixty-seventh episode of the series.
Theo convinces Stiles to help him conceal the truth about Josh's death. Hayden is attacked by the Doctors, but Liam rescues her and takes her home: however, she then transforms into a werewolf. Mason befriends Corey, Lucas's ex-boyfriend, and discovers that Corey is a Chimera. Kira's mother, Noshiko, warns her that Kira's "inner fox" is fighting her for control. Melissa McCall and Sheriff Stilinski discover that the Chimeras had all previously received organ transplants. Theo and Stiles stake out the vet clinic to find out who is stealing the dead Chimeras. Scott, Lydia, Malia, Liam and Parrish set up a trap in the high school, planning to protect Hayden and hopefully capture one of the Doctors. Kira disappears from her house. Meanwhile, Parrish slips into another trance, goes to the vet clinic, knocks Stiles and Theo unconscious, and steals Josh's body. The Doctors subdue Scott, Lydia and Malia using illusions, abduct Liam and Hayden, and begin experimenting on them. Melissa finds a dead girl in her house, impaled by Kira's katana.
- Tyler Posey as Scott McCall
- Dylan O'Brien as Stiles Stilinski
- Holland Roden as Lydia Martin
- Shelley Hennig as Malia Tate
- Arden Cho as Kira Yukimura
- Dylan Sprayberry as Liam Dunbar
- Melissa Ponzio as Melissa McCall
- Linden Ashby as Sheriff Stilinski
- Ryan Kelley as Deputy Jordan Parrish
- Tamlyn Tomita as Noshiko Yukimura
- Cody Christian as Theo Raeken
- Khylin Rhambo as Mason Hewitt
- Kelsey Asbille as Tracy Stewart (as Kelsey Chow)
- Victoria Moroles as Hayden Romero
- Tom T. Choi as Ken Yukimura
- Benita Robledo as Deputy Valerie Clarke
- Michael Johnston as Corey
- Henry Zaga as Josh Diaz
- Marti Matulis as The Surgeon
- Douglas Tait as The Pathologist
- Caitlin Dechelle as The Geneticist
- Makenna James as Theo's Sister
- The title refers to the Dread Doctors, whose powers come from frequencies and vibrations, specifically electromagnetic ones.
- In this episode, the Dread Doctors used some sort of sound device to induce horrifying hallucinations in Scott, Lydia, Malia, and Parrish that would incapacitate them so they could capture Liam and Hayden. Each of them had hallucinations that involved their greatest fears at the time in some way.
- Scott hallucinated that Kira stabbed him in the chest with her katana and told him she was the Messenger of Death, as Scott was afraid that her Kitsune spirit would make her like the Nogitsune.
- Parrish hallucinated that he passionately made out with Lydia before severely burning her with his Hellhound fire, as his biggest fear is hurting anyone with his powers.
- Malia hallucinated that she got caught in several steel-jawed traps, due to her fear of being caught in traps from when she still lived as a coyote in the woods.
- Lydia hallucinated that Tracy ripped out her tongue and kept her from being able to Banshee wail, as she feared being unable to help save her friends with her powers.
- Redhead Chimera - stabbed in the chest; killed by Kira Yukimura
- Beacon Hills Memorial Hospital
- Parking Lot
- Beacon Hills Preserve
- Beacon Hills Animal Clinic
- Exam Room
- Reception Area
- Parking Lot
- McCall House
- Scott's Bedroom/Bathroom
- Beacon Hills High School
- Mr. Yukimura's Classroom
- Locker Room
- Beacon County Sheriff's Department
- Sheriff's Office
- Parrish's Apartment
- Living Room
- Yukimura House
- Kira's Bedroom
- Dread Doctors' Operating Theater
- "Blush" by SBCR, Elisa Bee & His Majesty Andre
- A montage of the McCall Pack creating their plan to protect Hayden and catch a Dread Doctor at the high school
- "Open Heart (Bonus Acoustic Mix) by Morgan Page ft Lissie
- Kira questions Scott about her role in the plan before deciding that she needs to figure out what is wrong with her before she helps anyone else. They both kiss for a long moment.
- "Drexler" by MADE IN HEIGHTS
- Noshiko performs acupuncture on Kira's back in hopes of correcting the imbalance between the Kitsune spirit and the human spirit within her.
- "Get Back Up" by The Unknown
- Scott, Lydia, Jordan, Malia, Liam, and Hayden all set up the equipment and fortify the locker room at the high school
- "Holland" by Glass Face
- Hayden worries about her new identity as a Chimera, and Liam promises that she's still Hayden and that she'll learn to control it while Scott watches from nearby
- "Pleasure" by Wurk Insoxx ft K-Mi
- Mason finds Corey drinking at Sinema. When Corey tries to kiss him, Mason grabs him by the arm and reveals that he's already healed from the scorpion bite.