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Signal

Signal

A Call from the Past, the Call for the Future

20186.91 Season10 EpisodesEnded

Overview

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.

Created by Masaya Ozaki
Written by Masaya Ozaki, Kim Eun-hee
Produced by Takahiro Kasagi, Ishida Mai, Takashi Hagiwara
NetworksFuji TVKansai TV

Top Cast

Kentaro Sakaguchi

Kentaro Sakaguchi

Kento Saegusa

Kazuki Kitamura

Kazuki Kitamura

Takeshi Ooyama

Michiko Kichise

Michiko Kichise

Misaki Sakurai

Yuichi Kimura

Yuichi Kimura

Tsutomu Yamada

Tetsuhiro Ikeda

Tetsuhiro Ikeda

Shinya Kojima

Kaede Aono

Kaede Aono

Rika Anzai

Fuju Kamio

Fuju Kamio

Ryota Kato

Atsuro Watabe

Atsuro Watabe

Shinnosuke Nakamoto

Takemi Fujii

Takemi Fujii

Masahiro Komoto

Masahiro Komoto

Kazuo Iwata

Themes & Keywords

detectivekidnappinginvestigationremakeserial killersignalchanging the past or futureproceduraltime-manipulationpolice profilingpast and present

About Signal

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.

Shows Similar to Signal

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.

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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.

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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.

Cross
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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.

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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.

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Unforgettable(2011)

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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.

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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.

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Ragdoll(2021)

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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.

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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.

Harrow
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Harrow(2018)

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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
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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.