The article is a list feature arguing that cliffhangers are one of the key techniques that make thriller television so compelling, because they end episodes at moments of maximum uncertainty and push viewers into the next instalment. It says the best series reveal just enough information to encourage speculation before introducing fresh twists that complicate ideas of guilt, motive and truth.

– The piece presents seven thriller shows as examples of this approach, framing them as series that repeatedly end episodes with new questions rather than neat resolutions.
– In its introduction, the article says cliffhangers matter because they keep audiences on edge, reward theory-building and deepen the mystery instead of resolving it quickly.
– One example is `Bosch` (2014-2021), which the article says combines murder investigations with police corruption and Los Angeles political conspiracies.
– It highlights `Bosch` twists including suspects gaining alibis, prime suspects dying unexpectedly, the daytime murder of Bosch's ex-wife, the revelation about his mother's killer, and Bosch's resignation at the end of Season 7.
– Another example is `Sherlock` (2010-2017), presented as a modern version of Conan Doyle's detective stories using DNA, digital evidence and modern forensics while still delivering major suspense.
– The visible portion of the article suggests `Sherlock` is included because, despite its familiar source material, it still creates strong cliffhangers and uncertainty around its cases.