A serial killer is on the prowl in the Bigg Boss House. While detectives Rishabh and Priya look out for evidence, the other inmates have to safeguard themselves. Will the detectives succeed?

The housemates wake up swaying to Rishabh's trademark song 'Khalnayak Hu Mei'.

Indulging in a bout of morning gossip, Mandana talks to Priya and Rishabh about Prince's special morning kiss and night wishes for Nora. Priya tells Rishabh that Nora first tried to create an angle with him but when she realised that nothing is moving forward, she turned to Prince. Rishabh reacts to it by saying that he never falls prey to girls who use their beauty to go ahead in the game.

Meanwhile, Keith tells Mandana and Gizele to finish their household work before they're presented with a new task. The girls get annoyed with Keith's behaviour and call him weak as he's always dancing to his girlfriend's tunes. On one hand, Prince and Nora humour each other with some pillow fight while on the other, Mandana and Gizele tease Priya and Rishabh by calling them 'bhabhi' and 'devar'.

In the afternoon, RJ Malishka makes a virtual appearance in the Bigg Boss house through the TV screen. She announces the 'Murder Mystery' task aiming to get to the depth of it. In this task, while two contestants are appointed detectives, one housemate is the killer and the others are normal subjects.


The subjects need to guard their life while the killer is on the loose and the detectives are in search of him. The contestants are called separately into the confession room and allotted their roles. If the killer completes the task successfully, he receives the power to nominate one of the murdered contestants for eviction for the rest of the season. The detectives are given a camera in which they have to take pictures to prove their suspect as guilty. The killer is handed a cell phone through which he receives instructions for every murder.

For the task, Rishabh and Priya are allotted the roles of detectives. Housemates suspect one another as they are watchful of every move taken by the others. Priya and Rishabh are talking to all the contestants in order to gather information and proof to identify the killer. The Bigg Boss house has never been this suspicious as the task develops an interesting build up and keeps the viewers intrigued. Will it be innocent until proven guilty or guilty until proven innocent?