Alison Herman TV Critic The true crime industrial complex has grown so unwieldy over the years that the true crime critique is itself a phenomenon, if smaller in scale — the mothership’s opposite, though not quite its equal. On television, such takes run the tonal gamut from “The Investigation,” the somber Scandinavian drama about the real-life murder of journalist Kim Wall, to “Only Murders in the Building,” a silly spoof that takes loving aim at the likes of “Serial.” The new Peacock comedy “Based on a True Story” skews closer to the latter, down to its trio of aspiring podcasters in way over their heads. But even though it swaps Manhattan for sunny Los Angeles, “Based on a True Story” is much more bleak than “Only Murders.” (Creator Craig Rosenberg had a hand in the pitch-black humor of “The Boys.”) Some of that darkness adds to the show’s appeal; more often, much like its characters, “Based on a True Story” spins out of control.