Actual number of seasons: 4
“The first season was absolutely fantastic. Season 2 was still good, Season 3 really went downhill, and the fourth was a dumpster fire. None of them matched the first season, IMO.”
—rosybanana
“Killing Eve was never the same after Phoebe Waller-Bridge left as showrunner. A lot of Season 1’s brilliance can be credited to her, and after that it just started decreasing in quality. And don’t even get me started on the utter sham that was the series finale…😒”
—ravenbard
Source: https://www.buzzfeed.com/laurengarafano/tv-shows-that-went-downhill-after-season-1