After a long time frame of being stuck at home due to lockdown, Sahir is finally going out for a day trip on business purpose. His wife Dhwani wants to come along and since it is her birthday too the next day, the couple decides to visit their resort and spend time there. Dhwani’s sister - Payal was supposed to arrive there too, but she has not. Maybe she is just late, but Dhwani has some ill feeling about something happening to her.

Payal still has not shown up and Dhwani is getting more and more worried for her sister. While trying to figure out where she might have gone and where she might be now, Dhwani learns quite a few shocking things about her. Just a week back she had stayed in the same resort, but the happy time has now come to a stop. And then suddenly, the caretakers of the house - Somnath and Hema - go missing too. They are nowhere to be found, it’s like they got sucked in by the darkness of the night. Is there a connection between all these things? Tune in to MX Player to catch the latest Hindi thriller web series The Missing Stone!

Dhwani has to find out the truth of the eerie mishappenings that are happening at the resort. First her sister went missing and then the caretakers. She loves her sister too much to give up on her and is determined to follow the mystery that has been created. But there are too many mysteries in the path to the truth that she has to solve first.

Sahir and Dhwani make desperate attempts to find the whereabouts of Payal. In the process, they decide to call Ryan to the resort. Ryan is also eager to meet them and formulates his side of the plan. Three people are now going to come face to face in order to know the truth and find out just one thing- where is Payal? Moreover, Hema and Somnath have made a full proof plan of escaping from the resort. But, they come back later. Why did they come back? Why did they want to run away in the first place? Will Sahir and Dhwani’s meeting with Ryan yield any benefits?

Dhwani comes to know that her sister, Payal has been killed. Not just this, she also comes to know about her killer and has him on gunpoint. With nothing left to lose, Dhwani comes to realise that Payal's murder was done to hide her past. A past that was rather ugly for Dhwani herself, but she was not aware of it. Now that Dhwani has a hold on the killer, all she needs is one shot to bring justice to her sister. However, this shot would come at a personal cost, that is too much for Dhwani to pay. Will she punish the culprit? Who has killed Payal?