
Beyond Evil(2021)
As a killing resembling a cold case resurfaces in a small town, the chase for the truth falls on two policemen who each harbor secrets of their own.


“A Call from the Past, the Call for the Future”
Two detectives communicate through a walkie-talkie to solve a cold case. One detective exists in the present day, and the other detective exists 15 years in the past.

Kentaro Sakaguchi
Kento Saegusa

Kazuki Kitamura
Takeshi Ooyama

Michiko Kichise
Misaki Sakurai

Yuichi Kimura
Tsutomu Yamada

Tetsuhiro Ikeda
Shinya Kojima

Kaede Aono
Rika Anzai

Fuju Kamio
Ryota Kato

Atsuro Watabe
Shinnosuke Nakamoto

Takemi Fujii

Masahiro Komoto
Kazuo Iwata
Signal is a crime, drama, mystery series that first aired in 2018 exploring themes of detective, kidnapping, investigation, remake, serial killer, signal. Created by Masaya Ozaki, it stars Kentaro Sakaguchi, Kazuki Kitamura, Michiko Kichise. Two detectives communicate through a walkie-talkie to solve a cold case. One detective exists in the present day, and the other detective exists 15 years in the past.
Discover shows like Signal — ranked by similarity and community votes
We found 15 shows similar to Signal
If you enjoyed Signal, you'll love these handpicked recommendations. Each title below shares similar themes, tone, and storytelling style. Our algorithm analyzes genres, keywords, creator filmography, and cast connections to find the closest matches. Whether you're looking for the same emotional depth, narrative structure, or visual style, these picks are curated to deliver the best viewing experience for fans of Signal.

As a killing resembling a cold case resurfaces in a small town, the chase for the truth falls on two policemen who each harbor secrets of their own.

A sharp detective with a messy life, DCI Vera Stanhope patrols her “patch” of northeast England, pursuing the truth in cases of murder, kidnapping, and blackmail. Vera is obsessive about her work and faces the world with caustic wit, guile and courage.

A Las Vegas team of forensic investigators are trained to solve criminal cases by scouring the crime scene, collecting irrefutable evidence and finding the missing pieces that solve the mystery.

A series of heinous crimes have unsettled a small community, and Detective Lois Tryon feels they are eerily personal, as if someone—or something—is taunting her.

Alex Cross is a brilliant but flawed homicide detective and full of contradictions. A doting father and family man, Cross is single-minded to the point of obsession when he hunts killers. He is desperate for love, but his wife’s murder has left him too damaged to receive it.

A detective team apply new techniques to old crimes as they solve cold cases.

Patrick Jane, a former celebrity psychic medium, uses his razor sharp skills of observation and expertise at "reading" people to solve serious crimes with the California Bureau of Investigation.

Dexter Morgan, a blood spatter pattern analyst for the Miami Metro Police also leads a secret life as a serial killer, hunting down criminals who have slipped through the cracks of justice.

Former Syracuse, New York, police detective Carrie Wells has hyperthymesia, a rare medical condition that gives her the ability to visually remember everything. She reluctantly joins the New York City Police Department's Queens homicide unit after her former boyfriend and partner asks for help with solving a case. The move allows her to try to find out the one thing she has been unable to remember, which is what happened the day her sister was murdered.

When Detective Kat Donovan matches on a dating app with the fiancé who disappeared years before, she learns that some secrets are best left in the past.

A team of Vancouver investigators, led by homicide detective Angie Flynn, sets out to uncover the motive of each puzzling murder by discovering the killer's connection to the victim. Viewers get a glimpse of the killer before and after the crime is committed.

Detectives look to untangle the case of the Ragdoll Killer, who has killed six people and sewn their bodies into the shape of one grotesque body nicknamed the Ragdoll.

Years after a brutal attack left her in a constantly shifting reality, Kirby Mazrachi learns that a recent murder is linked to her assault. She teams with veteran reporter Dan Velazquez to understand her ever-changing present—and confront her past.

When a dark secret from this past threatens to be exposed, unorthodox and brilliant medical examiner, Doctor Daniel Harrow, must use all his forensic skills to keep it buried forever.

21 Jump Street revolves around a group of young cops who would use their youthful appearance to go undercover and solve crimes involving teenagers and young adults.