HARRISON — Deertrees Theatre, G.P. Productions and Image Theater will present “Monsters! the Musical” on Aug. 17-21 at Deertrees Theatre.

The comic musical, revolving around a 40th birthday celebration that stirs up a bevy of monsters, captures the humor, angst and insight experienced at life’s milestones.

Samantha, a Manhattan stockbroker, is visited by her domineering mother on her 40th birthday. Samantha reveals plans to quit her Wall Street job and head for soul-searching adventures in Machu Picchu.

Trying desperately to convince Samantha to reconsider, her  mother’s words stir up a toxic blend of old insecurities embodied by monsters. In an effort to derail her new ambitions and protect their status, the monsters drag Samantha into a showdown of wills and determination.

When a birthday package arrives at her door, the monsters warn her it’s no gift, but part of a dangerous plot against her. The antics skyrocket with a sexy birthday singer who is sent mysteriously.

With energetic music and comical lyrics, “Monsters! the Musical” asks: Have you faced your demons?

“Monsters! the Musical” is the creation of playwright, composer and Curry College playwright-in-residence Gail Phaneuf of Boston and composer Ernie Lijoi of New Jersey.

It premiered at Boston’s CentAstage before it continued on to development in New York City.

Phaneuf is an award-winning writer and director of many plays and musicals, including the new tween musical “The Love Note,” currently being produced nationwide.

 Tickets are $25 for adults, $15 for students. Show times are 8p.m. on Wednesday through Saturday and 2 p.m. on Sunday. For tickets, call 583-6747 or visit www.deertreestheatre.org. The theater is at 156 Deertrees Road.