2026 has delivered several murder mysteries that stood out on OTT with dark secrets, complicated investigations and unexpected turns. From cops chasing killers to families hiding crimes and ordinary people pulled into dangerous cases, these movies offer plenty of suspense for thriller fans.
10 Best Murder Mystery Movies of 2026
1. System (Prime Video)
Public prosecutor Neha Rajvansh enters a major legal battle hoping it will strengthen her position at her father’s powerful law firm. But as uncomfortable facts about privilege, influence and justice begin emerging, the case forces her to question whether winning is really the same as finding the truth. What starts as professional ambition gradually becomes a tense moral struggle.
2. Mardaani 3 (Netflix)
Shivani Shivaji Roy begins searching for missing children and quickly discovers that the disappearances are part of a much larger organised crime operation. The deeper she investigates, the more dangerous the network becomes, turning the rescue mission into one of her toughest battles yet. With more children at risk, stopping those responsible becomes increasingly urgent.
3. Kartavya (Netflix)
Police officer Pawan is left carrying the blame after a journalist is murdered despite being under his protection. Determined to understand what went wrong, he follows the case into a world of political influence, corruption and people powerful enough to threaten his own family. The investigation soon becomes as much about survival as solving the murder.
4. Maa Behen (Netflix)
A widowed mother and her two daughters find themselves facing an unbelievable problem when a corpse becomes the most dangerous secret inside their house. Their decision to hide what happened creates fresh trouble with every lie, especially as suspicious neighbours begin paying attention. The movie turns murder and cover-up into a darkly funny family mystery filled with panic and chaos.
5. The Whisper Man (Netflix)
Widowed crime writer Tom Kennedy is pulled into a terrifying mystery when his eight-year-old son is abducted. Searching for the child brings Tom together with his estranged father, a former police officer, and DI Amanda Beck, who uncover links to an old case involving the convicted serial killer known as the Whisper Man. Adam Scott, Robert De Niro and Michelle Monaghan lead this dark investigation.
6. Babita Singh Reporting (Prime Video)
Rookie cop Babita “Baby” Singh returns to her hometown for a family celebration after deliberately getting herself suspended from duty. Her visit becomes a murder mystery on the very first night when childhood friend Bansi is killed, pushing Babita to investigate without official permission. Following the clues soon brings her face to face with family betrayals and secrets that have remained hidden for years.
7. Ikka (Netflix)
Successful lawyer Arjun Mehra agrees to defend a man he had once been convinced was responsible for attempted murder. Fresh evidence begins shaking that certainty, forcing Arjun to reconsider the case as uncomfortable connections to his own past emerge. The courtroom mystery becomes a personal battle over guilt, judgment and whether justice may have gone wrong.
8. Cheekatilo (Prime Video)
A true-crime podcaster refuses to move on from the unanswered questions surrounding her close friend’s death. Her private investigation begins exposing disturbing secrets while also bringing back painful memories she had tried to leave behind. What starts as grief-driven curiosity soon places her inside a much darker and more dangerous mystery.
9. Uyir (JioHotstar)
Sub-Inspector Ajeeb Rahman is still haunted by his sister’s childhood disappearance when an unidentified woman’s body is discovered inside an abandoned well. He and fellow officer Joy follow the murder investigation across state borders, only to find the case pulling Ajeeb towards memories he has spent years avoiding. Roshan Mathew leads this Malayalam thriller where solving the crime becomes deeply personal.
10. The Truthers (Netflix)
After her mother’s suspicious death, Ruth returns to the family home looking for answers and instead finds her retired father behaving increasingly strangely. His aggressive behaviour and obsession with a dark conspiracy theory make her wonder whether the truth about her mother’s death may be much closer than she expected. The mystery turns a troubled family reunion into a disturbing question of trust and guilt.
Bonus: Crime 101 (Prime Video)
A skilled thief preparing for one final robbery crosses paths with an unhappy insurance broker who sees the scheme as an opportunity to change her life. Their carefully planned crime begins falling apart when a determined detective starts connecting the evidence and closing in. What follows is a tense chase driven by ambition, deception and the risk of one mistake exposing everything.
Whether you prefer police investigations, family secrets or mysteries where the truth keeps changing, these 2026 releases offer plenty of gripping OTT viewing.