にとりつかれて

be possessed by

→ に
phrase Rare #41,323
be possessed by Often describes being consumed or troubled by something, such as an ambition, fear, or misfortune. This form can connect to what follows.
JA: 彼は成功への野望にとりつかれている。
EN: He is possessed by an ambition to succeed.

彼は貧乏にとりつかれていた。

He was haunted by poverty.

やはり蟲にとりつかれていたか

So it really was possessed by a bug after all.

— 風の谷のナウシカ (1984)

製作者が不安にとりつかれて拝謁せよと・・・結婚は?

The creator, consumed by anxiety, ordered me to come and pay my respects… What about marriage?

— 8 1/2 (1963)