This is really high class tv show and I really love it. I will grant that my expectations were very low before watching Heartbeat - Season 4. I know it's know from being a mainstream popular tv show, but honestly it's a really entertaining tv show. It wasn't easy to leave the cinema, when I saw it first time. What determines the phenomenon of this tv show? It's realism, taking care of psychological probability?. Heartbeat - Season 4 is the best choice for an evening with netflix.