The Death Threats - Part 2

As the case continues so does the death threats to Riya. One day on the set, while shooting one of the fake knives gets replaced by the real one but the killer misses his shot and accidently hits the director of the movie instead of Riya. The team is now in a real fix as the suspects could now be anyone from the set. Will CID be able to zero down on the culprit?