There have been several planes generally similar to this, some quite successful. Early examples were the Italian Savoia-Marchetti S.55 and S.66 twin-hulled flying boats with a row of engines above the hulls and these were the most numerous.
They were the only ones to carry passengers on either side.
The most famous is surely the German WWII Heinkel He 111Z glider tug. It comprised two He 111 twin-engined bombers joined by a straight centre section with a fifth engine in the middle.
The French Fouga CM.88 Gemeaux engine-test aircraft had twin fuselages and for engine testing its original engines were replaced by a single central engine. It flight-tested several jet and turboprop engines in this way and is probably the only one to have flown with a single central jet, indeed any jet.
The Slovenian Pipistrel Taurus G4 is a more recent engine development platform for electric-powered aircraft. A few others have flown, or tried to, but proved useless.