An independent documentary film about the phenomenal resurgence of the modular synthesizer — exploring the passions, obsessions and dreams of people who have dedicated part of their lives to this esoteric electronic music machine. Inventors, musicians, and enthusiasts are interviewed about their relationship with the modular synthesizer — for many, it's an all-consuming passion.
| Actor | Role |
|---|---|
 Trent ReznorSelf | Self |
 Gary NumanSelf | Self |
| ccEvin KeySelf | Self |
| PPatti SchmidtNarrator | Narrator |
| JJoel ChadabeSelf | Self |
| JJohn Mills-CockellSelf | Self |
| MMorton SubotnickSelf | Self |
| MMaggi PayneSelf | Self |
 Chris CarterSelf | Self |
 Vince ClarkeSelf | Self |
| JJeremy GreenspanSelf | Self |
| JJack DangersSelf | Self |
| RRobert WheelerSelf | Self |
| JJohn TejadaSelf | Self |
| AAllen RavenstineSelf | Self |
 Alec EmpireSelf | Self |
 deadmau5Self | Self |
 Robert Aiki Aubrey LoweSelf | Self |