This episode of the paranormal-investigation series In Search Of turns its lens on sleep, asking whether dreams can be controlled or only interpreted after the fact. Psychologists and neurologists lay out the case for dreams as electrical noise generated by a resting brain, while shamans and spiritualists argue the same images carry messages from something beyond the mind. The two camps get roughly equal screen time, and the film lets them disagree rather than picking a side. A significant stretch covers lucid dreaming, the practice of realizing mid-dream that you're asleep and then steering what happens next, with experts split on whether it's a trainable skill or a rare gift. Along the way the show notes how diet, medication, trauma, and physical health can all reshape what shows up at night. Interviews carry the film rather than narration driving it, and it ends without resolving the central question, treating dream control as an open problem rather than a settled trick.