Israeli-born actor Nehemiah Persoff guests in this episode as Angelo Covelli, an immigrant Italian tailor. Signor Covelli has been acting strangely of late, arousing the interest of Officers Jim Reed (Kent McCord) and Pete Malloy (Martin Milner). The two mobile cops are aware that Angelo's brother was recently murdered--and equally aware that the old man is perfectly willing to become a killer himself to avenge his brother's death and uphold his family's honor. ~ Hal Erickson, Rovi