Back in 2015, I watched a Chicago actor named Kelvin Roston Jr. wrestle mightily with the troubled psyche of Donny Hathaway, the Chicago-born songwriter and soul singer who had a hit with “The ...

Kelvin Roston Jr. portrays Donny Hathaway in “Twisted Melodies.” Roston has long been a powerhouse in musical theater here, and in “Twisted Melodies,” he accompanies himself on keys.

Roston is still obsessed with Hathaway, bringing his solo show, dubbed “Twisted Melodies,” to the Northlight Theatre in Skokie a decade after Congo Square, following other stagings.