"Summer Rain," written and directed by Robert Coe. Running time: 75 minutes. $15. (world premiere) www.theaterforthenewcity.net 212-254-1109. Pochee Beach, San Clemente, California:  Summer of '65.  Two young surfers wait for a third, unsure about what might have happened to him in the course of a mysterious crime.  Two young women arrive on a quest for a ride to the greatest rock show of all time.  "Summer Rain" is a dark fable about spiritual ambition, violence, homophobia, sex, drugs, and rock 'n' roll, unfolding on a single night on a lonely patch of sand. This play is part of the "Dream Up Festival"; a theater festival that takes place at the Theater for the New City (TNC) from August 8 to September 5, 2010.