The Mad Love Life of a Hot Vampire (1971)

Count Dracula (Jim Parker) dispatches three seductive vampire women into the vibrant nightlife of Las Vegas, tasked with seducing men to harvest their precious "vile red blood." Meanwhile, Dr. Van Helsing teams up with his friend Bill to investigate the enigmatic death of Bill's sister, whose blood has been mysteriously drained. Their quest leads them to uncover Dracula's secret lair, culminating in a thrilling pursuit that drives the vampire toward the unforgiving sunlight, where his fate hangs in the balance.