Any person aggrieved by a decision of the board of appeals whether
or not previously a party to the proceeding, or any municipal officer
or board may appeal to the superior court by bringing an action within
20 days after the decision has been filed in the office of the town
clerk. Notice of the action with a copy of the complaint shall be
given to the town clerk so as to be received within such 20 days.
The complaint shall allege that the decision exceeds the authority
of the board and any facts pertinent to the issue, and shall contain
a prayer that the decision be annulled. There shall be attached to
the complaint a copy of the decision appealed from, bearing the date
of the filing thereof, certified by the town clerk with whom the decision
was filed.