Why is modern TV so confusing?

Transmission failure: your guide to TV’s most complicated showsMarcella is an ITV crime drama with a titular cop whose dark personal life gives her a unique insight into her investigations, just like every other titular cop in every other ITV crime drama since the beginning of the universe. Yet viewers expecting a cosy cop show were left unnerved by the final episode of the second series, which aired earlier this month, in which Marcella visits a hypnotherapist to reveal she killed her own