Jonathan Groff will croon his way into your heart

“Just in Time” travels the familiar narrative road of an artist’s rise and fall, but immersive swank and charming personality set this bio-musical apart from even its most successful predecessors. (“Jersey Boys,” watch your tail.) Staged nightclub-style by director Alex Timbers — with seating on three sides plus cabaret two-tops down front — the production fizzes with class and delight like a coupe of champagne. That warm and heady feeling? It’s secondhand intoxication from the joy Groff radiates in his element.