Toronto performer Noam Tomaschoff turned the discovery of 35-plus half-siblings into Our Little Secret, now playing at Mirvish’s CAA Theatre. After learning that the man who raised him for 31 years was not his biological dad and a DNA test revealed he has “at least 35 half-siblings that we know of,” Tomaschoff created Our Little Secret: A True New Musical, which explores the true meaning of family and identity by using humour.