Are Michael and Jan going to break up? Will Pam and Jim stop being so damned gooey? Who cares? We just want to see the Schrutes play Ping-Pong. The Office returns tonight — it has been nearly five months since a new episode — with its specialty: something boring we all deal with on a regular basis (a dinner party) transformed into something gloriously awkward yet, as always, oddly sweet. Maybe Dwight will kill another cat.