KD, Billimoria and Varun are at a theatre watching Billimoria's niece's play but, they are shocked during the play Manas gets killed. Everyone suspects Zenia as she had a knife in her hand. They find that the knife was just a propand couldn't have caused Manas to bleed out. KD finds that Manas was allergic to peanuts and had consumed them during the day. Who gave him the peanuts? How will KD crack the case?