Marillion - he knows you know, 1983

"He Knows You Know" is a song by the British neo-prog band Marillion. It was their second single, with "Charting the Single" as the B-side. It was released from their first album, Script for a Jester's Tear, and peaked at number 35 on the UK Singles Chart. The song's theme is drug abuse, and alludes particularly to intravenous drug use."