All the best Mystery Shows Streaming on ABC iView in May 2021

After a mistaken shooting during a counter-terrorist operation, Detective Sergeant Steve Arnott is transferred to AC-12, a police anti-corruption unit. Alongside Detective Constable Kate Fleming ,they are assigned to lead an investigation into the alleged corruption by a popular and successful officer, Detective Chief Inspector Tony Gates. While Gates cleverly manipulates his unit's figures, DS Arnott questions whether Gates is being made a scapegoat for a culture of institutionalized spin, or is guilty of darker corruption.

The Doctor, from a race called the Time Lords/Ladies whose home planet is Gallifrey, travels through time and space in his/her ship the TARDIS (an acronym for Time and Relative Dimension In Space) with numerous companions. From time to time he/she regenerates into a new form (which is how the series has been running since 1963).

"The Missing" follows Tony, played by James Nesbitt, as a man devastated by the abduction of his young son, Oliver, during a family vacation in France. He becomes a man obsessed, unable to accept that his child may be dead and spends years searching for him. Tony's exhaustive search fractures his marriage to Emily, played by Frances O' Connor and threatens to destroy his life. Tcheky Karyo plays Julien, the French police detective who launched the initial search for the child. Even though he is retired in present day, he too cannot shake the small belief that the child may still be alive. Told using a fascinating narrative puzzle, "The Missing" explores the impact of a child's abduction, the emotional cost of obsession, hope and finding when to let go. This gripping thriller is told simultaneously over multiple time frames and set in France and London.

This show tells the adventures of four turtles who were transformed into humanoids by a strange ooze and were trained as ninja by a human martial arts master, Hamato Yoshi, who was changed into a humanoid rat, Splinter, by the same substance. Together with the intrepid reporter, April O'Neil, they fight against the threats against the world, like Shredder and Krang.

The British detective drama revolves around DCI Barnaby's efforts to solve numerous murders that take place in the fictional English county of Midsomer. The current lead character is DCI John Barnaby, who is the younger cousin of former lead character DCI Tom Barnaby. The Barnabys have worked with several different sergeants throughout the run of the show, including Sgt Gavin Troy, Sgt Dan Scott, Sgt Ben Jones and Sgt Charlie Nelson.