is an interesting grammar structure in Japanese that is used to declare that something has a particular trait of (A), according to the speaker’s subjective opinion. Often, ものがある
is translated as ‘I feel strongly that (A)’, or ‘there is something (A) about (B)’. The latter meaning is very close to the literal translation here, as もの ‘thing’, がある ‘there is’ implies that the speaker strongly senses the presence of (A) within (B), even if they themselves cannot figure out why they feel that way.
is primarily seen following verbs in either their dictionary or negated forms, い-Adjectives, or な-Adjectives followed by な.
This film has something that moves people's hearts.
There is something about his story that I don't agree with.
There is something delightful about being able to do what you love for a living.
There is something dangerous about letting children play in the river alone.
emphasizes the existence of (A) within (B), it is very common for the emphasized には to also be used in place of に when highlighting the topic.
Caution - Although ‘I feel strongly that (A)’ is a common interpretation of ものがある, it is important to remember that the actual thing that is generating that feeling within the speaker may either be very strong, or very weak. In other words, ものがある may be used even when something isn’t obvious about (A), so long as the speaker themselves feel strongly about it.
Fun-fact - 目（め）を見張（みは）るものがある
is a set phrase that is a combination of 目（め）を見張（みは）る ‘to be astonished’, and ものがある
. In most cases, this expression just means that (B) is extremely surprising or impressive.