A dirt filter wired straight into a frequency shifter — in series, the way nobody else will pre-wire it. The filter drives, the shifter detunes, and what comes out the other end is metallic, clangy, and beautifully wrong: the sound of running a signal through something that wants to hurt it.
You could buy a filter pedal and a frequency shifter separately and route one into the other — but nobody does, so nobody sounds like this. Serial Killer is a horizontal two-module character box: a DIRT filter section (FILTER, LEVEL, DRIVE, PAIN, MG MIX) running straight into a FREQUENCY SHIFTER (SHIFT, FEEDBACK, STACK, RANGE, BODE MIX), in series, exactly the chain nobody else pre-wires. Filth first, then the detune. That order is the whole sound.
Not a multi-effect with a routing menu — one signal path, filter into shifter, the way it was meant to be abused. The chain IS the instrument, and it's the pre-wiring nobody else ships.
FILTER, LEVEL, DRIVE, PAIN, MG MIX. A filter section that doesn't just carve — it damages. DRIVE pushes it, PAIN pushes it somewhere you probably shouldn't, and MG MIX lets you decide how much of the crime scene the track sees.
SHIFT moves every part of the sound by a fixed amount instead of a musical interval, so harmonics slide out of tune with themselves — that's where the metallic, clanging, detuned character comes from. A pitch shifter keeps things polite. This doesn't.
FEEDBACK sends the shifted signal back through for compounding smear, STACK piles it deeper, and RANGE sets how far SHIFT reaches — from a barely-detuned shimmer to full bell-factory collapse. Its own MIX knob keeps the wreckage on a leash.
The display renders the filter curve in real time with the ghost behind it — turn FILTER and you watch the shape move as you hear it. You always know what the DIRT section is doing to the signal before the shifter gets its hands on it.
Metallic percussion, clangy basses, drones that beat against themselves, leads that sound recently exhumed. When a part is too clean and too safe, this is the box you feed it to.
AU + VST3 — drop it in and go. If your DAW loads plugins, it loads this one.
Serial Killer is $49.99, one time, yours forever. Or take the whole Ghost Audio catalog for $149.99 ($100 while we're in launch). No subscriptions, no fake sales.
Any DAW that loads VST3 or AU: Ableton Live, Logic Pro, FL Studio, Cubase, Studio One, Reaper, Bitwig, and more. Not Pro Tools: Pro Tools only loads AAX plugins, and we do not make an AAX build.
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A pitch shifter multiplies every frequency, so harmonics keep their musical relationship and things stay in tune. A frequency shifter adds a fixed offset to everything instead, which slides the harmonics out of ratio with each other — that's the metallic, clangy, detuned character. Serial Killer runs its DIRT filter into that shifter in series, so the filth gets detuned too.
Because the order is the sound. Filter and drive first shapes what the shifter smears, and FEEDBACK and STACK compound it from there. You could chain two separate plugins to try this — nobody does, which is exactly why nothing else sounds like it. Each module has its own MIX, so you can dose each stage separately.
Try the free 10-day demo first — it's the full plugin, so you can hear exactly what you're buying. All sales are final after that, and if something's ever broken on our end, we'll make it right.
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