Enola Holmes 3 review – Netflix mystery franchise is starting to lose steam

The brief

Despite the ever-increasing size and dominance of Netflix, the streamer has continued to struggle with its most obvious aim. While viewers might flock there for smooth-brained dating shows, tawdry true crime, Harlan Coben thrillers and junky romcoms, the platform is yet to be known for creating original movie franchises, the bread and butter of most old-fashioned Hollywood studios, for better or worse. The problem Netflix often faces is that to turn a big-budget bet into a cultural event, it requires more than a low-stakes click at home and a brief weekend’s worth of chatter. Big numbers might have met wannabe franchise-starters Red Notice and The Grey Man but a lack…