Happiness (2025) is a Drama, Action & Adventure, Mystery series that follows in a post-COVID world, a mysterious drug called “Next” sparks a terrifying outbreak of madness. As violent deaths rise, detective Prap reveals a chilling link between the chaos and the drug—uncovering a conspiracy far darker than expected. Happiness is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 5.0 out of 10 from 1 votes. Fans of drama series may also want to explore similar titles below.