Detective Ujjwalan movie review: To be honest, makers should, at the very least, now realise that cinematic universes and serial killers no longer automatically pique audience interest. The simple reason is their overuse. It has become almost impossible to walk into a big-ticket or whodunit film without fearing that it’s either the first installment of yet another franchise or centred around a serial killer. In debutant directors Indraneel Gopeekrishnan and Rahul G’s Detective Ujjwalan, both these elements are at play. Not only is it part of the Weekend Cinematic Universe (WCU), which began with Minnal Murali (2021) and is named after the production company Weekend Blockbusters, but it also revolves around a serial killer on the prowl, targeting those walking alone at night in the fictional village of Plaachikkaavu. A model village that, according to local SI Sachin (Rony David Raj), stands as a “symbol of goodness and happiness”, with a very low crime rate, the only offences that happen in Plaachikkaavu are usually petty thefts by the local thief Anthikkurudan (Nihal Nizam). Hence, when …