Investigation Discovery, the true-crime network behind the bombshell docuseries Quiet on Set: The Dark Side of Kids TV, has teased The Fall of Diddy, a four-parter that digs into the life of Sean “Diddy” Combs as he sits in jail charged with sex trafficking and racketeering.

The docuseries, to air across two nights, Jan. 27 and 28 at 9 p.m., promises to probe allegations of sexual assault, abusive behavior and violence from Rodney “Lil Rod” Jones, a former producer for Combs who claims the mogul sexually harassed him; Thalia Graves, a woman who alleges Diddy violently raped her in 2001, before threatening her into silence; and former Vibe magazine Editor-in-Chief Danyel Smith, who talks about alleged violent behavior toward her.

There’s also interviews in the ID and Max series from a former personal driver, a onetime chef, an early publicist, and makeup artist Mylah Morales, who says she witnessed Combs’ abuse of singer and ex-girlfriend Cassie,...