Movies Like Unaffair - The Unknown

If you liked Unaffair - The Unknown (2012), a movie directed by Wataru Oku, here are 20 movies with a similar feel, based on TMDB's recommendations. Each one links to its cast, trailer and where it's streaming.

1
Reptile (2023)
★ 6.7/10
Following the brutal murder of a young real estate agent, a hardened detective attempts to uncover the truth in a case where nothing is as it seems, and by doing so dismantles the illusions in his own life.
2
Murder by Numbers (2002)
★ 6.2/10
Tenacious homicide detective Cassie Mayweather and her still-green partner are working a murder case, attempting to profile two malevolently brilliant young men: cold, calculating killers whose dark secrets might…
3
Hollywoodland (2006)
★ 6.1/10
When Hollywood superstar George Reeves dies in his home, private detective Louis Simo is hired to investigate his death and gets caught in a web of lies involving a big studio executive's wife. Based on a true story.
4
Welcome to the Punch (2013)
★ 5.9/10
When notorious criminal Jacob Sternwood is forced to return to London, it gives detective Max Lewinsky one last chance to take down the man he's always been after.
5
Righteous Kill (2008)
★ 5.9/10
Two veteran New York City detectives work to identify the possible connection between a recent murder and a case they believe they solved years ago; is there a serial killer on the loose, and did they perhaps put the…
6
The Pledge (2001)
★ 6.6/10
A police chief, about to retire, pledges to help a woman find her daughter's killer.
7
Vengeance Is Mine (1979)
★ 7.5/10
A thief, a murderer, and a charming lady-killer, Iwao Enokizu is on the run from the police.
8
Rising Sun (1993)
★ 6.2/10
When a prostitute is found dead in a Los Angeles skyscraper occupied by a large Japanese corporation, detectives John Connor and Web Smith are called in to investigate. Although Connor has previous experience working…
9
McQ (1974)
★ 6.1/10
Police Lieutenant Lon McQ investigates the killing of his best friend and uncovers corrupt elements of the police department dealing in confiscated drugs.
10
Pacific Heights (1990)
★ 6.3/10
A couple works hard to renovate their dream house and become landlords to pay for it. Unfortunately one of their tenants has plans of his own.
11
Crooked House (2017)
★ 6.4/10
A private investigator helps a former flame solve the murder of her wealthy grandfather, who lived in a sprawling estate surrounded by his idiosyncratic family.
12
The Kid Detective (2020)
★ 6.6/10
A once-celebrated kid detective, now 31, continues to solve the same trivial mysteries between hangovers and bouts of self-pity. Until a naive client brings him his first 'adult' case, to find out who brutally murdered…
13
The Big Sleep (1946)
★ 7.6/10
Private Investigator Philip Marlowe is hired by wealthy General Sternwood regarding a matter involving his youngest daughter Carmen. Before the complex case is over, Marlowe sees murder, blackmail, deception, and what…
14
Farewell, My Lovely (1975)
★ 6.7/10
Private eye Philip Marlowe is hired by ex-con Moose Malloy to find his girlfriend, a former lounge dancer. While also investigating the murder of a client and the theft of a jade necklace, Marlowe becomes entangled…
15
Out for Justice (1991)
★ 6.2/10
Gino Felino is an NYPD detective from Brooklyn who knows everyone and everything in his neighborhood. Killing his partner was someone's big mistake... because he's now out for justice.
16
Azumi (2003)
★ 6.9/10
In war-torn Japan, the Tokugawa Shogun, desperate to restore peace to his people, orders the assassination of the hostile warlords. A beautiful young woman is raised from birth with nine other orphans, to become an…
17
Masquerade Hotel (2019)
★ 6.7/10
A serial (3) killer leaves a GPS code of his next target with each victim - this time Hotel Cortesia Tokyo. A detective goes undercover as hotel staff - haircut, manners etc.
18
They Call Me Mister Tibbs! (1970)
★ 5.9/10
A police detective's investigation of a prostitute's murder points to his best friend.
19
Baby Assassins (2021)
★ 6.6/10
Two high school girls who are about to graduate also happen to be highly-skilled assassins. When the organization they work for orders them to share a room, their relationship quickly sours. But when they become…
20
Cure (1997)
★ 7.6/10
A frustrated detective deals with the case of several gruesome murders committed by people who have no recollection of what they've done.