A husband and wife (played by Casper Van Dien and Jennifer Wenger) go to a rental property located deep within the dry, rural areas outside of Los Angeles, but they encounter a creature resembling a werewolf. Following a bite, chaos erupts during each full moon. Patrick Muldoon and Robert Allen Mukes also appear in the cast. “Alpha Wolf” (2018) is unexpectedly entertaining considering its low-budget origins as a t…