'DTF St. Louis', premiering on HBO, is a miniseries created by Steven Conrad that uses dark humor to address the complexities of adult life and marriage. The storyline revolves around a love triangle involving middle-aged suburbanites, which ultimately leads to a murder, highlighting the pitfalls of romantic entanglements in midlife. With a cast featuring notable actors like David Harbour, Jason Bateman, and Linda Cardellini, the show aims to showcase both the absurdities and challenges faced by couples in contemporary relationships. The tech aspect of dating apps is also central to the narrative, reflecting how modern technology interacts with traditional notions of love and fidelity.