On Rotten Tomatoes, the first season has a 77% approval rating with an average score of 6.08/10 based on 35 reviews; the critical consensus reads, ""In Treatment" has finely-written scripts that develop with raw emotion while unspooling engrossing suspense." The second season has an 100% approval rating with an average score of 8.85/10 based on 19 reviews; the critical consensus reads, ""In Treatment" continues to hone in on its characters in the second season, allowing the cast to find more nuances in their performances." The third season has an 87% approval rating with an average score of 8.58/10 based on 23 reviews; the critical consensus reads, ""In Treatment" offers some of the tightest dramatic writing and purest performances on television."