Written and first recorded by Neil Sedaka (1975).
Hit version by The Captain & Tennille (US #3/MOR #1 1976).
From the wiki: “‘Lonely Night (Angel Face)’ was written and first recorded in 1975 by Neil Sedaka, appearing as a track on his 1975 studio album, The Hungry Years. The following year the song was made popular when covered by The Captain & Tennille for their album Song of Joy who took their version to #3 on the Billboard Hot 100.”
The Captain & Tennille, “Lonely Night (Angel Face)” (1976):