Tommy Woodry is a young boy living in a cramped New York City apartment with his parents. Known for his imaginative fibs, Tommy frequently spins wild tales that strain his parents' patience and shake their trust in him. One sweltering summer night, seeking relief from the oppressive heat, he decides to sleep out on the fire escape. From there, he inadvertently witnesses a shocking event in the apartment above: a murder. Terrified, he rushes to tell his mother and father about what he's seen, but given his history of fabrications, they dismiss his claims as another tall tale. Frustrated and desperate, Tommy seeks adult assistance from others in his building but receives the same doubtful responses.

Despite being dismissed by the adults around him, Tommy's resolve strengthens in his determination to uncover the truth about the crime he is certain occurred. He starts investigating on his own, piecing together the clues he saw through the window that night. His attempts to convince others unintentionally alert the real criminals to his knowledge. As he delves deeper into the mystery, the danger escalates. Tommy must navigate both his disbelief from those who should protect him and evade the threat posed by those involved in the crime. With a mix of courage and ingenuity, Tommy learns to rely on himself as he tries to find a way to prove he’s telling the truth and ensure justice is served.