make someone's blood run cold
US /meɪk ˈsʌm.wʌnz blʌd rʌn koʊld/
UK /meɪk ˈsʌm.wʌnz blʌd rʌn koʊld/

1.
to make someone feel very frightened or horrified
:
•
The ghost story made my blood run cold.
•
The sudden scream made everyone's blood run cold.