Without spoiling the suspenseful feature, note that Angela's character is leading a controlled life married to co-worker Manuel Ferrara, but after meeting Maitland she ventures into unknown erotic territory, her sexual drive eventually getting the better of her.
What follows is an unraveling that pulls her out of the order of home and work and strings her along through a pulsing underground world of illicit gratification.
Angela displays perfect execution in all aspects of her life until a chance encounter with a stranger makes her to face off against her own sexuality.