Private investigator Tony Rome, on a quest for underwater riches, stumbles upon a stunning blonde encased in cement. His discovery leads to an unexpected job from the intimidating Waldo Gronski, who seeks the whereabouts of a missing woman named Sandra Lomax. As Rome delves deeper into the case, he encounters a captivating party girl and a cunning criminal, raising questions about the woman's fate and the tangled web surrounding her disappearance. The plot thickens as Rome navigates danger and deception in pursuit of the truth.