Single Slipper Size 7 is an Indian Tamil-language horror-thriller that premiered at the Singapore South Asian Film Festival. It was written, produced and directed by Radhakrishnan Parthiban, who also stars as the only character in the movie. It’s the first South Indian film to feature one single actor.Radhakrishnan Parthiban plays Masilamani, an emotionally unstable middle-aged security guard who is being interrogated as a murder suspect at the police station – all while his terminally ill young son is waiting outside the interrogation room. While we can hear the voices of the policemen and his son, Masi remains the only character throughout the movie to be seen on screen.In the film, the Human Rights Commission has already sent a notice to the police telling them that they will be watching over the investigation, and they have asked them to not violate Masilamani’s rights. The deputy commissioner purposely fails to mention the letter when cops in the unit want to use force and unethical techniques to make their suspect confess to the murders. Not only does Masi confess to the murder he is being accused of, he also  admits to having killed two more people. Next to each body, a single slipper in size 7 is found.It doesn’t take long for him to explain how he committed the horrendous crimes. “I won’t tell you why I did it, but shall I tell you how?’, he says before acting out the murders. During his confession, he unravels how his marital problems triggered him to go on a killing spree and we find out why he carefully planted a slipper at every crime scene. It’s up to the audience to piece together the case, as Masilamani behaves in a bizarre manner, talks in riddles and goes back and forth between events.Parthiban is known in his home country for making movies that push the envelope. He made his directorial debut in 1989 with Pudhiya Pathai, which he also wrote and starred in. Single Slipper Size 7 entered the Asia Book of Records and India Book of Records for having a single person writing, directing, acting and producing a film.