Tucked away in a dimly lit lounge at the Doubletree Hotel on Wilshire Boulevard, Anna Guigui sits perched at a black Baby Grand piano, relieving her frustration as her fingers glide up and down the keys for the duration of Doubletree’s cocktail hour.

“God Box,” Guigui’s autobiographical one-woman show, is a bittersweet musical confection of first times and last resorts, childhood expectations and adulthood acceptance. Centered around her gig as the lounge’s singer-pianist extraordinaire, Guigui weaves together her varied life experiences and affectionate impressions of her Argentine-Jewish parents with Billy Joel covers and her own original compositions (An accomplished singer-keyboardist-composer, Guigui has been nominated for an L.A. Music Award and a Grammy.).

While the show often teeters that fine line between sweet and sappy, “God Box” possesses several intimate moments that uncover a softer side to Guigui, transcending her from a stereotypical middle-aged woman whining about the perfect man to a unique performer with unexpected profundity. These moments include monologues detailing her first kiss, the loss of her virginity and an eye-opening encounter with a lonely and lustful stranger. After each monologue, Guigui returns to her muse – the Baby Grand – and quietly sings a verse of Roberta Flack’s “The First Time Ever I Saw Your Face,” her voice smooth and composed despite the trauma she revealed half a minute earlier. Cliched? Perhaps, but as the show has taken a darker, more contemplative turn by this point, it works.

Though Guigui is delightful to watch and even more delightful to hear, “God Box” offers a glimpse into the loneliness that’s inherent in all of those seated in the Doubletree’s lounge sipping overpriced cocktails, and to whom Guigui sings.

Actors Forum Theatre is located at 10655 Magnolia Blvd., North Hollywood. For more information, visit Plays411.com/godbox.