Voodoo Heartbeat

Voodoo Heartbeat (also known as The Sex Serum of Dr. Blake) is a 1972 exploitation horror film directed by Charles Nizet and starring Ray Molina, Philip Ahn, Ern Dugo, Forrest Duke, Ebby Rhodes, Mike Zapata, Ray Molina Jr., Stan Mason, Mary Martinez & Mike Meyers.

Plot
An experimental serum turns a man into a fanged killer beast.

Cast

 * Ray Molina as Dr. Blake
 * Philip Ahn as Mao Tse Tung
 * Stan Mason as Inspector Brady

Production
The film was shot in ATF Studios in Las Vegas, Nevada.

In 1972, the president of TWI International, Robert Saxton, announced that Mike Zapata was going to be the top star of the motion picture and television in a couple of years, but this is only film role.

Release and rediscovery
The film was theatrically released on October 1975 by TWI National.

Also this film screened on Cannes Film Festival in 1970.